Ac:
  Atomic mass: 227.0
  Atomic no: 89
  Atomic orbitals: {1s: -3443.110367, 2p: -572.7627, 2s: -592.622878, 3d: -119.541743,
    3p: -137.654394, 3s: -147.320716, 4d: -23.57061, 4f: -12.278225, 4p: -31.761846,
    4s: -36.15826, 5d: -3.222752, 5p: -6.06511, 5s: -7.713078, 6d: -0.137786, 6p: -0.744524,
    6s: -1.19698, 7s: -0.126551}
  Atomic radius: 1.95
  Atomic radius calculated: no data
  Boiling point: 3573 K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: no data GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [3]
  Critical temperature: no data K
  Density of solid: 10070 kg m<sup>-3</sup>
  Electrical resistivity: no data 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Rn].6d<sup>1</sup>.7s<sup>2</sup>'
  Ionic radii: {'3': 1.26}
  Liquid range: 2250 K
  Melting point: 1323 K
  Mendeleev no: 48
  Mineral hardness: no data
  Molar volume: 22.55 cm<sup>3</sup>
  Name: Actinium
  Oxidation states: [3]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: no data GPa
  Shannon radii:
    3:
      VI:
        ? ''
        : {crystal_radius: 1.26, ionic_radius: 1.12}
  Superconduction temperature: no data K
  Thermal conductivity: 12 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: no data m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 1.1
  Youngs modulus: no data GPa
Ag:
  Atomic mass: 107.8682
  Atomic no: 47
  Atomic orbitals: {1s: -900.324578, 2p: -120.913351, 2s: -129.859807, 3d: -13.367803,
    3p: -20.06763, 3s: -23.678437, 4d: -0.298706, 4p: -2.086602, 4s: -3.22309, 5s: -0.157407}
  Atomic radius: 1.6
  Atomic radius calculated: 1.65
  Boiling point: 2435 K
  Brinell hardness: 24.5 MN m<sup>-2</sup>
  Bulk modulus: 100 GPa
  Coefficient of linear thermal expansion: 18.9 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [1]
  Critical temperature: no data K
  Density of solid: 10490 kg m<sup>-3</sup>
  Electrical resistivity: 1.63 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Kr].4d<sup>10</sup>.5s<sup>1</sup>'
  ICSD oxidation states: [1, 2, 3]
  Ionic radii: {'1': 1.29, '2': 1.08, '3': 0.89}
  Liquid range: 1200.07 K
  Melting point: 1234.93 K
  Mendeleev no: 71
  Mineral hardness: '2.5'
  Molar volume: 10.27 cm<sup>3</sup>
  Name: Silver
  Oxidation states: [1, 2, 3]
  Poissons ratio: '0.37'
  Reflectivity: 97 %
  Refractive index: no data
  Rigidity modulus: 30 GPa
  Shannon radii:
    1:
      II:
        ? ''
        : {crystal_radius: 0.81, ionic_radius: 0.67}
      IV:
        ? ''
        : {crystal_radius: 1.14, ionic_radius: 1.0}
      IVSQ:
        ? ''
        : {crystal_radius: 1.16, ionic_radius: 1.02}
      V:
        ? ''
        : {crystal_radius: 1.23, ionic_radius: 1.09}
      VI:
        ? ''
        : {crystal_radius: 1.29, ionic_radius: 1.15}
      VII:
        ? ''
        : {crystal_radius: 1.36, ionic_radius: 1.22}
      VIII:
        ? ''
        : {crystal_radius: 1.42, ionic_radius: 1.28}
    2:
      IVSQ:
        ? ''
        : {crystal_radius: 0.93, ionic_radius: 0.79}
      VI:
        ? ''
        : {crystal_radius: 1.08, ionic_radius: 0.94}
    3:
      IVSQ:
        ? ''
        : {crystal_radius: 0.81, ionic_radius: 0.67}
      VI:
        ? ''
        : {crystal_radius: 0.89, ionic_radius: 0.75}
  Superconduction temperature: no data K
  Thermal conductivity: 430 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 1.72
  Velocity of sound: 2600 m s<sup>-1</sup>
  Vickers hardness: 251 MN m<sup>-2</sup>
  X: 1.93
  Youngs modulus: 83 GPa
Al:
  Atomic mass: 26.9815386
  Atomic no: 13
  Atomic orbitals: {1s: -55.156044, 2p: -2.564018, 2s: -3.934827, 3p: -0.102545, 3s: -0.286883}
  Atomic radius: 1.25
  Atomic radius calculated: 1.18
  Boiling point: 2792 K
  Brinell hardness: 245 MN m<sup>-2</sup>
  Bulk modulus: 76 GPa
  Coefficient of linear thermal expansion: 23.1 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [3]
  Critical temperature: no data K
  Density of solid: 2700 kg m<sup>-3</sup>
  Electrical resistivity: 2.7 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Ne].3s<sup>2</sup>.3p<sup>1</sup>'
  ICSD oxidation states: [3]
  Ionic radii: {'3': 0.675}
  Liquid range: 1858.53 K
  Melting point: 933.47 K
  Mendeleev no: 80
  Mineral hardness: '2.75'
  Molar volume: 10.00 cm<sup>3</sup>
  Name: Aluminum
  Oxidation states: [1, 3]
  Poissons ratio: '0.35'
  Reflectivity: 71 %
  Refractive index: no data
  Rigidity modulus: 26 GPa
  Shannon radii:
    3:
      IV:
        ? ''
        : {crystal_radius: 0.53, ionic_radius: 0.39}
      V:
        ? ''
        : {crystal_radius: 0.62, ionic_radius: 0.48}
      VI:
        ? ''
        : {crystal_radius: 0.675, ionic_radius: 0.535}
  Superconduction temperature: 1.175 K
  Thermal conductivity: 235 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 1.84
  Velocity of sound: 5100 m s<sup>-1</sup>
  Vickers hardness: 167 MN m<sup>-2</sup>
  X: 1.61
  Youngs modulus: 70 GPa
Am:
  Atomic mass: 243.0
  Atomic no: 95
  Atomic orbitals: no data
  Atomic radius: 1.75
  Atomic radius calculated: no data
  Boiling point: 2880 K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: no data GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [3]
  Critical temperature: no data K
  Density of solid: no data kg m<sup>-3</sup>
  Electrical resistivity: no data 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Rn].5f<sup>7</sup>.7s<sup>2</sup>'
  Ionic radii: {'2': 1.4, '3': 1.115, '4': 0.99}
  Liquid range: 1431 K
  Melting point: 1449 K
  Mendeleev no: 42
  Mineral hardness: no data
  Molar volume: 17.63 cm<sup>3</sup>
  Name: Americium
  Oxidation states: [2, 3, 4, 5, 6]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: no data GPa
  Shannon radii:
    2:
      IX:
        ? ''
        : {crystal_radius: 1.45, ionic_radius: 1.31}
      VII:
        ? ''
        : {crystal_radius: 1.35, ionic_radius: 1.21}
      VIII:
        ? ''
        : {crystal_radius: 1.4, ionic_radius: 1.26}
    3:
      VI:
        ? ''
        : {crystal_radius: 1.115, ionic_radius: 0.975}
      VIII:
        ? ''
        : {crystal_radius: 1.23, ionic_radius: 1.09}
    4:
      VI:
        ? ''
        : {crystal_radius: 0.99, ionic_radius: 0.85}
      VIII:
        ? ''
        : {crystal_radius: 1.09, ionic_radius: 0.95}
  Superconduction temperature: 0.6 K
  Thermal conductivity: 10 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: no data m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 1.3
  Youngs modulus: no data GPa
Ar:
  Atomic mass: 39.948
  Atomic no: 18
  Atomic orbitals: {1s: -113.800134, 2p: -8.443439, 2s: -10.794172, 3p: -0.38233,
    3s: -0.883384}
  Atomic radius: 0.71
  Atomic radius calculated: 0.71
  Boiling point: 87.3 K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: no data GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Critical temperature: 150.8 K
  Density of solid: no data kg m<sup>-3</sup>
  Electrical resistivity: no data 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Ne].3s<sup>2</sup>.3p<sup>6</sup>'
  Liquid range: 3.5 K
  Max oxidation state: 0.0
  Melting point: 83.8 K
  Mendeleev no: 3
  Min oxidation state: 0.0
  Mineral hardness: no data
  Molar volume: 22.56 cm<sup>3</sup>
  Name: Argon
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: '1.000281'
  Rigidity modulus: no data GPa
  Superconduction temperature: no data K
  Thermal conductivity: 0.01772 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 1.88
  Velocity of sound: 319 m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  Youngs modulus: no data GPa
As:
  Atomic mass: 74.9216
  Atomic no: 33
  Atomic orbitals: {1s: -423.336658, 2p: -47.527869, 2s: -53.093086, 3d: -1.542767,
    3p: -4.851725, 3s: -6.730755, 4p: -0.197497, 4s: -0.52367}
  Atomic radius: 1.15
  Atomic radius calculated: 1.14
  Boiling point: 887 K
  Brinell hardness: 1440 MN m<sup>-2</sup>
  Bulk modulus: 22 GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [-3, 3, 5]
  Critical temperature: 1700 K
  Density of solid: 5727 kg m<sup>-3</sup>
  Electrical resistivity: 33 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Ar].3d<sup>10</sup>.4s<sup>2</sup>.4p<sup>3</sup>'
  ICSD oxidation states: [2, 3, 5, -2, -3, -1]
  Ionic radii: {'3': 0.72, '5': 0.6}
  Liquid range: 203 K
  Melting point: 1090 K
  Mendeleev no: 89
  Mineral hardness: '3.5'
  Molar volume: 12.95 cm<sup>3</sup>
  Name: Arsenic
  Oxidation states: [-3, 2, 3, 5]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: '1.001552'
  Rigidity modulus: no data GPa
  Shannon radii:
    3:
      VI:
        ? ''
        : {crystal_radius: 0.72, ionic_radius: 0.58}
    5:
      IV:
        ? ''
        : {crystal_radius: 0.475, ionic_radius: 0.335}
      VI:
        ? ''
        : {crystal_radius: 0.6, ionic_radius: 0.46}
  Superconduction temperature: no data K
  Thermal conductivity: 50 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 1.85
  Velocity of sound: no data m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 2.18
  Youngs modulus: 8 GPa
At:
  Atomic mass: 210.0
  Atomic no: 85
  Atomic orbitals: {1s: -3127.390276, 2p: -513.044243, 2s: -531.81835, 3d: -103.060375,
    3p: -119.995013, 3s: -129.035542, 4d: -18.295162, 4f: -8.063483, 4p: -25.778264,
    4s: -29.809515, 5d: -1.643758, 5p: -4.027061, 5s: -5.453383, 6p: -0.255453, 6s: -0.560189}
  Atomic radius: no data
  Atomic radius calculated: no data
  Boiling point: no data K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: no data GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [-1, 1]
  Critical temperature: no data K
  Density of solid: no data kg m<sup>-3</sup>
  Electrical resistivity: no data 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Xe].4f<sup>14</sup>.5d<sup>10</sup>.6s<sup>2</sup>.6p<sup>5</sup>'
  Ionic radii: {'7': 0.76}
  Liquid range: no data K
  Melting point: 575 K
  Mendeleev no: 96
  Mineral hardness: no data
  Molar volume: no data cm<sup>3</sup>
  Name: Astatine
  Oxidation states: [-1, 1, 3, 5]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: no data GPa
  Shannon radii:
    7:
      VI:
        ? ''
        : {crystal_radius: 0.76, ionic_radius: 0.62}
  Superconduction temperature: no data K
  Thermal conductivity: 2 (estimate)W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 2.02
  Velocity of sound: no data m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 2.2
  Youngs modulus: no data GPa
Au:
  Atomic mass: 196.966569
  Atomic no: 79
  Atomic orbitals: {1s: -2683.508245, 2p: -430.725701, 2s: -447.888973, 3d: -81.511751,
    3p: -96.707, 3s: -104.824516, 4d: -12.131815, 4f: -3.486824, 4p: -18.578652, 4s: -22.078357,
    5d: -0.304738, 5p: -2.002495, 5s: -3.113936, 6s: -0.162334}
  Atomic radius: 1.35
  Atomic radius calculated: 1.74
  Boiling point: 3129 K
  Brinell hardness: 2450 MN m<sup>-2</sup>
  Bulk modulus: 220 GPa
  Coefficient of linear thermal expansion: 14.2 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [3]
  Critical temperature: no data K
  Density of solid: 19300 kg m<sup>-3</sup>
  Electrical resistivity: 2.2 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Xe].4f<sup>14</sup>.5d<sup>10</sup>.6s<sup>1</sup>'
  Ionic radii: {'1': 1.51, '3': 0.99, '5': 0.71}
  Liquid range: 1791.67 K
  Melting point: 1337.33 K
  Mendeleev no: 70
  Mineral hardness: '2.5'
  Molar volume: 10.21 cm<sup>3</sup>
  Name: Gold
  Oxidation states: [-1, 1, 2, 3, 5]
  Poissons ratio: '0.44'
  Reflectivity: 95 %
  Refractive index: no data
  Rigidity modulus: 27 GPa
  Shannon radii:
    1:
      VI:
        ? ''
        : {crystal_radius: 1.51, ionic_radius: 1.37}
    3:
      IVSQ:
        ? ''
        : {crystal_radius: 0.82, ionic_radius: 0.68}
      VI:
        ? ''
        : {crystal_radius: 0.99, ionic_radius: 0.85}
    5:
      VI:
        ? ''
        : {crystal_radius: 0.71, ionic_radius: 0.57}
  Superconduction temperature: no data K
  Thermal conductivity: 320 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 1.66
  Velocity of sound: 1740 m s<sup>-1</sup>
  Vickers hardness: 216 MN m<sup>-2</sup>
  X: 2.54
  Youngs modulus: 78 GPa
B:
  Atomic mass: 10.811
  Atomic no: 5
  Atomic orbitals: {1s: -6.564347, 2p: -0.136603, 2s: -0.344701}
  Atomic radius: 0.85
  Atomic radius calculated: 0.87
  Boiling point: 4200 K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: 320 GPa
  Coefficient of linear thermal expansion: 6 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [3]
  Critical temperature: no data K
  Density of solid: 2460 kg m<sup>-3</sup>
  Electrical resistivity: '&gt; 10<sup>12</sup>10<sup>-8</sup> &Omega; m'
  Electronic structure: '[He].2s<sup>2</sup>.2p<sup>1</sup>'
  ICSD oxidation states: [3, -3]
  Ionic radii: {'3': 0.41}
  Liquid range: 1851 K
  Melting point: 2349 K
  Mendeleev no: 86
  Mineral hardness: '9.3'
  Molar volume: 4.39 cm<sup>3</sup>
  Name: Boron
  Oxidation states: [1, 2, 3]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: no data GPa
  Shannon radii:
    3:
      III:
        ? ''
        : {crystal_radius: 0.15, ionic_radius: 0.01}
      IV:
        ? ''
        : {crystal_radius: 0.25, ionic_radius: 0.11}
      VI:
        ? ''
        : {crystal_radius: 0.41, ionic_radius: 0.27}
  Superconduction temperature: no data K
  Thermal conductivity: 27 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 1.92
  Velocity of sound: 16200 m s<sup>-1</sup>
  Vickers hardness: 49000 MN m<sup>-2</sup>
  X: 2.04
  Youngs modulus: no data GPa
Ba:
  Atomic mass: 137.327
  Atomic no: 56
  Atomic orbitals: {1s: -1305.743258, 2p: -189.598483, 2s: -200.844444, 3d: -28.528933,
    3p: -37.536931, 3s: -42.359434, 4d: -3.432441, 4p: -6.497622, 4s: -8.257061, 5p: -0.698605,
    5s: -1.157159, 6s: -0.118967}
  Atomic radius: 2.15
  Atomic radius calculated: 2.53
  Boiling point: 2143 K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: 9.6 GPa
  Coefficient of linear thermal expansion: 20.6 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [2]
  Critical temperature: no data K
  Density of solid: 3510 kg m<sup>-3</sup>
  Electrical resistivity: 34 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Xe].6s<sup>2</sup>'
  ICSD oxidation states: [2]
  Ionic radii: {'2': 1.49}
  Liquid range: 1143 K
  Melting point: 1000 K
  Mendeleev no: 14
  Mineral hardness: '1.25'
  Molar volume: 38.16 cm<sup>3</sup>
  Name: Barium
  Oxidation states: [2]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 4.9 GPa
  Shannon radii:
    2:
      IX:
        ? ''
        : {crystal_radius: 1.61, ionic_radius: 1.47}
      VI:
        ? ''
        : {crystal_radius: 1.49, ionic_radius: 1.35}
      VII:
        ? ''
        : {crystal_radius: 1.52, ionic_radius: 1.38}
      VIII:
        ? ''
        : {crystal_radius: 1.56, ionic_radius: 1.42}
      X:
        ? ''
        : {crystal_radius: 1.66, ionic_radius: 1.52}
      XI:
        ? ''
        : {crystal_radius: 1.71, ionic_radius: 1.57}
      XII:
        ? ''
        : {crystal_radius: 1.75, ionic_radius: 1.61}
  Superconduction temperature: no data K
  Thermal conductivity: 18 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 2.68
  Velocity of sound: 1620 m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 0.89
  Youngs modulus: 13 GPa
Be:
  Atomic mass: 9.012182
  Atomic no: 4
  Atomic orbitals: {1s: -3.856411, 2s: -0.205744}
  Atomic radius: 1.05
  Atomic radius calculated: 1.12
  Boiling point: 2742 K
  Brinell hardness: 600 MN m<sup>-2</sup>
  Bulk modulus: 130 GPa
  Coefficient of linear thermal expansion: 11.3 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [2]
  Critical temperature: no data K
  Density of solid: 1848 kg m<sup>-3</sup>
  Electrical resistivity: 3.8 10<sup>-8</sup> &Omega; m
  Electronic structure: '[He].2s<sup>2</sup>'
  ICSD oxidation states: [2]
  Ionic radii: {'2': 0.59}
  Liquid range: 1182 K
  Melting point: 1560 K
  Mendeleev no: 77
  Mineral hardness: '5.5'
  Molar volume: 4.85 cm<sup>3</sup>
  Name: Beryllium
  Oxidation states: [2]
  Poissons ratio: '0.032'
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 132 GPa
  Shannon radii:
    2:
      III:
        ? ''
        : {crystal_radius: 0.3, ionic_radius: 0.16}
      IV:
        ? ''
        : {crystal_radius: 0.41, ionic_radius: 0.27}
      VI:
        ? ''
        : {crystal_radius: 0.59, ionic_radius: 0.45}
  Superconduction temperature: 0.026 K
  Thermal conductivity: 190 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 1.53
  Velocity of sound: 13000 m s<sup>-1</sup>
  Vickers hardness: 1670 MN m<sup>-2</sup>
  X: 1.57
  Youngs modulus: 287 GPa
Bi:
  Atomic mass: 208.9804
  Atomic no: 83
  Atomic orbitals: {1s: -2975.550959, 2p: -484.716359, 2s: -502.950758, 3d: -95.532476,
    3p: -111.883393, 3s: -120.613998, 4d: -16.084817, 4f: -6.382744, 4p: -23.218641,
    4s: -27.07034, 5d: -1.139408, 5p: -3.293637, 5s: -4.611934, 6p: -0.180198, 6s: -0.426129}
  Atomic radius: 1.6
  Atomic radius calculated: 1.43
  Boiling point: 1837 K
  Brinell hardness: 94.2 MN m<sup>-2</sup>
  Bulk modulus: 31 GPa
  Coefficient of linear thermal expansion: 13.4 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [3]
  Critical temperature: no data K
  Density of solid: 9780 kg m<sup>-3</sup>
  Electrical resistivity: 130 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Xe].4f<sup>14</sup>.5d<sup>10</sup>.6s<sup>2</sup>.6p<sup>3</sup>'
  ICSD oxidation states: [1, 2, 3, 5]
  Ionic radii: {'3': 1.17, '5': 0.9}
  Liquid range: 1292.6 K
  Melting point: 544.4 K
  Mendeleev no: 87
  Mineral hardness: '2.25'
  Molar volume: 21.31 cm<sup>3</sup>
  Name: Bismuth
  Oxidation states: [-3, 3, 5]
  Poissons ratio: '0.33'
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 12 GPa
  Shannon radii:
    3:
      V:
        ? ''
        : {crystal_radius: 1.1, ionic_radius: 0.96}
      VI:
        ? ''
        : {crystal_radius: 1.17, ionic_radius: 1.03}
      VIII:
        ? ''
        : {crystal_radius: 1.31, ionic_radius: 1.17}
    5:
      VI:
        ? ''
        : {crystal_radius: 0.9, ionic_radius: 0.76}
  Superconduction temperature: no data K
  Thermal conductivity: 8 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 2.07
  Velocity of sound: 1790 m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 2.02
  Youngs modulus: 32 GPa
Bk:
  Atomic mass: 247.0
  Atomic no: 97
  Atomic orbitals: no data
  Atomic radius: no data
  Atomic radius calculated: no data
  Boiling point: no data K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: no data GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [3]
  Critical temperature: no data K
  Density of solid: 14780 kg m<sup>-3</sup>
  Electrical resistivity: no data 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Rn].5f<sup>9</sup>.7s<sup>2</sup>'
  Ionic radii: {'3': 1.1, '4': 0.97}
  Liquid range: no data K
  Melting point: 1259 K
  Mendeleev no: 40
  Mineral hardness: no data
  Molar volume: 16.84 cm<sup>3</sup>
  Name: Berkelium
  Oxidation states: [3, 4]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: no data GPa
  Shannon radii:
    3:
      VI:
        ? ''
        : {crystal_radius: 1.1, ionic_radius: 0.96}
    4:
      VI:
        ? ''
        : {crystal_radius: 0.97, ionic_radius: 0.83}
      VIII:
        ? ''
        : {crystal_radius: 1.07, ionic_radius: 0.93}
  Superconduction temperature: no data K
  Thermal conductivity: 10 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: no data m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 1.3
  Youngs modulus: no data GPa
Br:
  Atomic mass: 79.904
  Atomic no: 35
  Atomic orbitals: {1s: -480.182643, 2p: -55.67796, 2s: -61.710022, 3d: -2.52211,
    3p: -6.298805, 3s: -8.409057, 4p: -0.295334, 4s: -0.720066}
  Atomic radius: 1.15
  Atomic radius calculated: 0.94
  Boiling point: 332 K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: 1.9 GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [-1, 1, 3, 5, 7]
  Critical temperature: 586 K
  Density of solid: no data kg m<sup>-3</sup>
  Electrical resistivity: '&gt; 10<sup>18</sup>10<sup>-8</sup> &Omega; m'
  Electronic structure: '[Ar].3d<sup>10</sup>.4s<sup>2</sup>.4p<sup>5</sup>'
  ICSD oxidation states: [5, -1]
  Ionic radii: {'-1': 1.82, '3': 0.73, '5': 0.45, '7': 0.53}
  Liquid range: 66.2 K
  Melting point: 265.8 K
  Mendeleev no: 98
  Mineral hardness: no data
  Molar volume: 19.78 cm<sup>3</sup>
  Name: Bromine
  Oxidation states: [-1, 1, 3, 4, 5, 7]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: '1.001132'
  Rigidity modulus: no data GPa
  Shannon radii:
    -1:
      VI:
        ? ''
        : {crystal_radius: 1.82, ionic_radius: 1.96}
    3:
      IVSQ:
        ? ''
        : {crystal_radius: 0.73, ionic_radius: 0.59}
    5:
      IIIPY:
        ? ''
        : {crystal_radius: 0.45, ionic_radius: 0.31}
    7:
      IV:
        ? ''
        : {crystal_radius: 0.39, ionic_radius: 0.25}
      VI:
        ? ''
        : {crystal_radius: 0.53, ionic_radius: 0.39}
  Superconduction temperature: no data K
  Thermal conductivity: 0.12 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 1.85
  Velocity of sound: no data m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 2.96
  Youngs modulus: no data GPa
C:
  Atomic mass: 12.0107
  Atomic no: 6
  Atomic orbitals: {1s: -9.947718, 2p: -0.199186, 2s: -0.500866}
  Atomic radius: 0.7
  Atomic radius calculated: 0.67
  Boiling point: 4300 K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: 33 GPa
  Coefficient of linear thermal expansion: 7.1 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [-4, 4]
  Critical temperature: no data K
  Density of solid: 2267 kg m<sup>-3</sup>
  Electrical resistivity: about 1000 - direction dependent10<sup>-8</sup> &Omega;
    m
  Electronic structure: '[He].2s<sup>2</sup>.2p<sup>2</sup>'
  ICSD oxidation states: [2, 3, 4, -4, -3, -2]
  Ionic radii: {'4': 0.3}
  Liquid range: 500 K
  Melting point: 3800 K
  Mendeleev no: 95
  Mineral hardness: 0.5 (graphite; diamond is 10.0)(no units)
  Molar volume: 5.29 cm<sup>3</sup>
  Name: Carbon
  Oxidation states: [-4, -3, -2, -1, 1, 2, 3, 4]
  Poissons ratio: no data
  Reflectivity: 27 %
  Refractive index: 2.417 (diamond)(no units)
  Rigidity modulus: no data GPa
  Shannon radii:
    4:
      III:
        ? ''
        : {crystal_radius: 0.06, ionic_radius: -0.08}
      IV:
        ? ''
        : {crystal_radius: 0.29, ionic_radius: 0.15}
      VI:
        ? ''
        : {crystal_radius: 0.3, ionic_radius: 0.16}
  Superconduction temperature: no data K
  Thermal conductivity: 140 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 1.7
  Velocity of sound: 18350 m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 2.55
  Youngs modulus: no data GPa
Ca:
  Atomic mass: 40.078
  Atomic no: 20
  Atomic orbitals: {1s: -143.935181, 2p: -12.285376, 2s: -15.046905, 3p: -1.030572,
    3s: -1.706331, 4s: -0.141411}
  Atomic radius: 1.8
  Atomic radius calculated: 1.94
  Boiling point: 1757 K
  Brinell hardness: 167 MN m<sup>-2</sup>
  Bulk modulus: 17 GPa
  Coefficient of linear thermal expansion: 22.3 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [2]
  Critical temperature: no data K
  Density of solid: 1550 kg m<sup>-3</sup>
  Electrical resistivity: 3.4 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Ar].4s<sup>2</sup>'
  ICSD oxidation states: [2]
  Ionic radii: {'2': 1.14}
  Liquid range: 642 K
  Melting point: 1115 K
  Mendeleev no: 16
  Mineral hardness: '1.75'
  Molar volume: 26.20 cm<sup>3</sup>
  Name: Calcium
  Oxidation states: [2]
  Poissons ratio: '0.31'
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 7.4 GPa
  Shannon radii:
    2:
      IX:
        ? ''
        : {crystal_radius: 1.32, ionic_radius: 1.18}
      VI:
        ? ''
        : {crystal_radius: 1.14, ionic_radius: 1.0}
      VII:
        ? ''
        : {crystal_radius: 1.2, ionic_radius: 1.06}
      VIII:
        ? ''
        : {crystal_radius: 1.26, ionic_radius: 1.12}
      X:
        ? ''
        : {crystal_radius: 1.37, ionic_radius: 1.23}
      XII:
        ? ''
        : {crystal_radius: 1.48, ionic_radius: 1.34}
  Superconduction temperature: no data K
  Thermal conductivity: 200 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 2.31
  Velocity of sound: 3810 m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 1.0
  Youngs modulus: 20 GPa
Cd:
  Atomic mass: 112.411
  Atomic no: 48
  Atomic orbitals: {1s: -941.476646, 2p: -127.63512, 2s: -136.83249, 3d: -14.685252,
    3p: -21.637522, 3s: -25.379908, 4d: -0.47053, 4p: -2.39526, 4s: -3.596069, 5s: -0.204228}
  Atomic radius: 1.55
  Atomic radius calculated: 1.61
  Boiling point: 1040 K
  Brinell hardness: 203 MN m<sup>-2</sup>
  Bulk modulus: 42 GPa
  Coefficient of linear thermal expansion: 30.8 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [2]
  Critical temperature: no data K
  Density of solid: 8650 kg m<sup>-3</sup>
  Electrical resistivity: 7 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Kr].4d<sup>10</sup>.5s<sup>2</sup>'
  ICSD oxidation states: [2]
  Ionic radii: {'2': 1.09}
  Liquid range: 445.78 K
  Melting point: 594.22 K
  Mendeleev no: 75
  Mineral hardness: '2.0'
  Molar volume: 13.00 cm<sup>3</sup>
  Name: Cadmium
  Oxidation states: [1, 2]
  Poissons ratio: '0.30'
  Reflectivity: 67 %
  Refractive index: no data
  Rigidity modulus: 19 GPa
  Shannon radii:
    2:
      IV:
        ? ''
        : {crystal_radius: 0.92, ionic_radius: 0.78}
      V:
        ? ''
        : {crystal_radius: 1.01, ionic_radius: 0.87}
      VI:
        ? ''
        : {crystal_radius: 1.09, ionic_radius: 0.95}
      VII:
        ? ''
        : {crystal_radius: 1.17, ionic_radius: 1.03}
      VIII:
        ? ''
        : {crystal_radius: 1.24, ionic_radius: 1.1}
      XII:
        ? ''
        : {crystal_radius: 1.45, ionic_radius: 1.31}
  Superconduction temperature: 0.517 K
  Thermal conductivity: 97 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 1.58
  Velocity of sound: 2310 m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 1.69
  Youngs modulus: 50 GPa
Ce:
  Atomic mass: 140.116
  Atomic no: 58
  Atomic orbitals: {1s: -1406.148284, 2p: -206.925148, 2s: -218.684842, 3d: -32.412569,
    3p: -41.938282, 3s: -47.035283, 4d: -4.192548, 4f: -0.337442, 4p: -7.532106, 4s: -9.432744,
    5d: -0.14055, 5p: -0.85011, 5s: -1.369728, 6s: -0.133974}
  Atomic radius: 1.85
  Atomic radius calculated: no data
  Boiling point: 3633 K
  Brinell hardness: 412 MN m<sup>-2</sup>
  Bulk modulus: 22 GPa
  Coefficient of linear thermal expansion: 6.3 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [3, 4]
  Critical temperature: no data K
  Density of solid: 6689 kg m<sup>-3</sup>
  Electrical resistivity: 74 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Xe].4f<sup>1</sup>.5d<sup>1</sup>.6s<sup>2</sup>'
  ICSD oxidation states: [3, 4]
  Ionic radii: {'3': 1.15, '4': 1.01}
  Liquid range: 2565 K
  Melting point: 1068 K
  Mendeleev no: 32
  Mineral hardness: '2.5'
  Molar volume: 20.69 cm<sup>3</sup>
  Name: Cerium
  Oxidation states: [2, 3, 4]
  Poissons ratio: '0.24'
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 14 GPa
  Shannon radii:
    3:
      IX:
        ? ''
        : {crystal_radius: 1.336, ionic_radius: 1.196}
      VI:
        ? ''
        : {crystal_radius: 1.15, ionic_radius: 1.01}
      VII:
        ? ''
        : {crystal_radius: 1.21, ionic_radius: 1.07}
      VIII:
        ? ''
        : {crystal_radius: 1.283, ionic_radius: 1.143}
      X:
        ? ''
        : {crystal_radius: 1.39, ionic_radius: 1.25}
      XII:
        ? ''
        : {crystal_radius: 1.48, ionic_radius: 1.34}
    4:
      VI:
        ? ''
        : {crystal_radius: 1.01, ionic_radius: 0.87}
      VIII:
        ? ''
        : {crystal_radius: 1.11, ionic_radius: 0.97}
      X:
        ? ''
        : {crystal_radius: 1.21, ionic_radius: 1.07}
      XII:
        ? ''
        : {crystal_radius: 1.28, ionic_radius: 1.14}
  Superconduction temperature: 0.022  (under pressure)K
  Thermal conductivity: 11 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: 2100 m s<sup>-1</sup>
  Vickers hardness: 270 MN m<sup>-2</sup>
  X: 1.12
  Youngs modulus: 34 GPa
Cf:
  Atomic mass: 251.0
  Atomic no: 98
  Atomic orbitals: no data
  Atomic radius: no data
  Atomic radius calculated: no data
  Boiling point: no data K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: no data GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [3]
  Critical temperature: no data K
  Density of solid: 15100 kg m<sup>-3</sup>
  Electrical resistivity: no data 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Rn].5f<sup>10</sup>.7s<sup>2</sup>'
  Ionic radii: {'3': 1.09, '4': 0.961}
  Liquid range: no data K
  Melting point: 1173 K
  Mendeleev no: 39
  Mineral hardness: no data
  Molar volume: 16.50 cm<sup>3</sup>
  Name: Californium
  Oxidation states: [2, 3, 4]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: no data GPa
  Shannon radii:
    3:
      VI:
        ? ''
        : {crystal_radius: 1.09, ionic_radius: 0.95}
    4:
      VI:
        ? ''
        : {crystal_radius: 0.961, ionic_radius: 0.821}
      VIII:
        ? ''
        : {crystal_radius: 1.06, ionic_radius: 0.92}
  Superconduction temperature: no data K
  Thermal conductivity: no data W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: no data m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 1.3
  Youngs modulus: no data GPa
Cl:
  Atomic mass: 35.453
  Atomic no: 17
  Atomic orbitals: {1s: -100.369229, 2p: -7.039982, 2s: -9.187993, 3p: -0.32038, 3s: -0.754458}
  Atomic radius: 1.0
  Atomic radius calculated: 0.79
  Boiling point: 239.11 K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: 1.1 (liquid)GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [-1, 1, 3, 5, 7]
  Critical temperature: 417 K
  Density of solid: no data kg m<sup>-3</sup>
  Electrical resistivity: '&gt; 10<sup>10</sup>10<sup>-8</sup> &Omega; m'
  Electronic structure: '[Ne].3s<sup>2</sup>.3p<sup>5</sup>'
  ICSD oxidation states: [-1]
  Ionic radii: {'-1': 1.67, '5': 0.26, '7': 0.41}
  Liquid range: 67.51 K
  Melting point: 171.6 K
  Mendeleev no: 99
  Mineral hardness: no data
  Molar volume: 17.39 cm<sup>3</sup>
  Name: Chlorine
  Oxidation states: [-1, 1, 2, 3, 4, 5, 6, 7]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: '1.000773'
  Rigidity modulus: no data GPa
  Shannon radii:
    -1:
      VI:
        ? ''
        : {crystal_radius: 1.67, ionic_radius: 1.81}
    5:
      IIIPY:
        ? ''
        : {crystal_radius: 0.26, ionic_radius: 0.12}
    7:
      IV:
        ? ''
        : {crystal_radius: 0.22, ionic_radius: 0.08}
      VI:
        ? ''
        : {crystal_radius: 0.41, ionic_radius: 0.27}
  Superconduction temperature: no data K
  Thermal conductivity: 0.0089 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 1.75
  Velocity of sound: 206 m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 3.16
  Youngs modulus: no data GPa
Cm:
  Atomic mass: 247.0
  Atomic no: 96
  Atomic orbitals: no data
  Atomic radius: no data
  Atomic radius calculated: no data
  Boiling point: 3383 K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: no data GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [3]
  Critical temperature: no data K
  Density of solid: 13510 kg m<sup>-3</sup>
  Electrical resistivity: no data 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Rn].5f<sup>7</sup>.6d<sup>1</sup>.7s<sup>2</sup>'
  Ionic radii: {'3': 1.11, '4': 0.99}
  Liquid range: 1770 K
  Melting point: 1613 K
  Mendeleev no: 41
  Mineral hardness: no data
  Molar volume: 18.05 cm<sup>3</sup>
  Name: Curium
  Oxidation states: [3, 4]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: no data GPa
  Shannon radii:
    3:
      VI:
        ? ''
        : {crystal_radius: 1.11, ionic_radius: 0.97}
    4:
      VI:
        ? ''
        : {crystal_radius: 0.99, ionic_radius: 0.85}
      VIII:
        ? ''
        : {crystal_radius: 1.09, ionic_radius: 0.95}
  Superconduction temperature: no data K
  Thermal conductivity: 8.8 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: no data m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 1.3
  Youngs modulus: no data GPa
Co:
  Atomic mass: 58.933195
  Atomic no: 27
  Atomic orbitals: {1s: -275.616639, 2p: -28.152095, 2s: -32.379758, 3d: -0.322368,
    3p: -2.388285, 3s: -3.651812, 4s: -0.204497}
  Atomic radius: 1.35
  Atomic radius calculated: 1.52
  Boiling point: 3200 K
  Brinell hardness: 700 MN m<sup>-2</sup>
  Bulk modulus: 180 GPa
  Coefficient of linear thermal expansion: 13.0 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [2, 3]
  Critical temperature: no data K
  Density of solid: 8900 kg m<sup>-3</sup>
  Electrical resistivity: 6 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Ar].3d<sup>7</sup>.4s<sup>2</sup>'
  ICSD oxidation states: [1, 2, 3, 4]
  Ionic radii: {'2': 0.885, '3': 0.75, '4': 0.67}
  Ionic radii hs: {'2': 0.885, '3': 0.75, '4': 0.67}
  Ionic radii ls: {'2': 0.79, '3': 0.685}
  Liquid range: 1432 K
  Melting point: 1768 K
  Mendeleev no: 64
  Mineral hardness: '5.0'
  Molar volume: 6.67 cm<sup>3</sup>
  Name: Cobalt
  Oxidation states: [-1, 1, 2, 3, 4, 5]
  Poissons ratio: '0.31'
  Reflectivity: 67 %
  Refractive index: no data
  Rigidity modulus: 75 GPa
  Shannon radii:
    2:
      IV:
        High Spin: {crystal_radius: 0.72, ionic_radius: 0.58}
      V:
        ? ''
        : {crystal_radius: 0.81, ionic_radius: 0.67}
      VI:
        High Spin: {crystal_radius: 0.885, ionic_radius: 0.745}
        Low Spin: {crystal_radius: 0.79, ionic_radius: 0.65}
      VIII:
        ? ''
        : {crystal_radius: 1.04, ionic_radius: 0.9}
    3:
      VI:
        High Spin: {crystal_radius: 0.75, ionic_radius: 0.61}
        Low Spin: {crystal_radius: 0.685, ionic_radius: 0.545}
    4:
      IV:
        ? ''
        : {crystal_radius: 0.54, ionic_radius: 0.4}
      VI:
        High Spin: {crystal_radius: 0.67, ionic_radius: 0.53}
  Superconduction temperature: no data K
  Thermal conductivity: 100 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: 4720 m s<sup>-1</sup>
  Vickers hardness: 1043 MN m<sup>-2</sup>
  X: 1.88
  Youngs modulus: 209 GPa
Cr:
  Atomic mass: 51.9961
  Atomic no: 24
  Atomic orbitals: {1s: -213.881191, 2p: -20.526273, 2s: -24.113457, 3d: -0.118123,
    3p: -1.65423, 3s: -2.649085, 4s: -0.150445}
  Atomic radius: 1.4
  Atomic radius calculated: 1.66
  Boiling point: 2944 K
  Brinell hardness: 1120 MN m<sup>-2</sup>
  Bulk modulus: 160 GPa
  Coefficient of linear thermal expansion: 4.9 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [3, 6]
  Critical temperature: no data K
  Density of solid: 7140 kg m<sup>-3</sup>
  Electrical resistivity: 12.7 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Ar].3d<sup>5</sup>.4s<sup>1</sup>'
  ICSD oxidation states: [2, 3, 4, 5, 6]
  Ionic radii: {'2': 0.94}
  Ionic radii hs: {'2': 0.94}
  Ionic radii ls: {'2': 0.87, '3': 0.755, '4': 0.69, '5': 0.63, '6': 0.58}
  Liquid range: 764 K
  Melting point: 2180 K
  Mendeleev no: 57
  Mineral hardness: '8.5'
  Molar volume: 7.23 cm<sup>3</sup>
  Name: Chromium
  Oxidation states: [-2, -1, 1, 2, 3, 4, 5, 6]
  Poissons ratio: '0.21'
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 115 GPa
  Shannon radii:
    2:
      VI:
        High Spin: {crystal_radius: 0.94, ionic_radius: 0.8}
        Low Spin: {crystal_radius: 0.87, ionic_radius: 0.73}
    3:
      VI:
        ? ''
        : {crystal_radius: 0.755, ionic_radius: 0.615}
    4:
      IV:
        ? ''
        : {crystal_radius: 0.55, ionic_radius: 0.41}
      VI:
        ? ''
        : {crystal_radius: 0.69, ionic_radius: 0.55}
    5:
      IV:
        ? ''
        : {crystal_radius: 0.485, ionic_radius: 0.345}
      VI:
        ? ''
        : {crystal_radius: 0.63, ionic_radius: 0.49}
      VIII:
        ? ''
        : {crystal_radius: 0.71, ionic_radius: 0.57}
    6:
      IV:
        ? ''
        : {crystal_radius: 0.4, ionic_radius: 0.26}
      VI:
        ? ''
        : {crystal_radius: 0.58, ionic_radius: 0.44}
  Superconduction temperature: no data K
  Thermal conductivity: 94 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: 5940 m s<sup>-1</sup>
  Vickers hardness: 1060 MN m<sup>-2</sup>
  X: 1.66
  Youngs modulus: 279 GPa
Cs:
  Atomic mass: 132.9054519
  Atomic no: 55
  Atomic orbitals: {1s: -1256.738791, 2p: -180.995344, 2s: -191.981873, 3d: -26.418398,
    3p: -35.166423, 3s: -39.851584, 4d: -2.848386, 4p: -5.769326, 4s: -7.455966, 5p: -0.504903,
    5s: -0.915819, 6s: -0.078699}
  Atomic radius: 2.6
  Atomic radius calculated: 2.98
  Boiling point: 944 K
  Brinell hardness: 0.14 MN m<sup>-2</sup>
  Bulk modulus: 1.6 GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [1]
  Critical temperature: 1938 K
  Density of solid: 1879 kg m<sup>-3</sup>
  Electrical resistivity: 21 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Xe].6s<sup>1</sup>'
  ICSD oxidation states: [1]
  Ionic radii: {'1': 1.81}
  Liquid range: 642.41 K
  Melting point: 301.59 K
  Mendeleev no: 8
  Mineral hardness: '0.2'
  Molar volume: 70.94 cm<sup>3</sup>
  Name: Cesium
  Oxidation states: [1]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: no data GPa
  Shannon radii:
    1:
      IX:
        ? ''
        : {crystal_radius: 1.92, ionic_radius: 1.78}
      VI:
        ? ''
        : {crystal_radius: 1.81, ionic_radius: 1.67}
      VIII:
        ? ''
        : {crystal_radius: 1.88, ionic_radius: 1.74}
      X:
        ? ''
        : {crystal_radius: 1.95, ionic_radius: 1.81}
      XI:
        ? ''
        : {crystal_radius: 1.99, ionic_radius: 1.85}
      XII:
        ? ''
        : {crystal_radius: 2.02, ionic_radius: 1.88}
  Superconduction temperature: no data K
  Thermal conductivity: 36 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 3.43
  Velocity of sound: no data m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 0.79
  Youngs modulus: 1.7 GPa
Cu:
  Atomic mass: 63.546
  Atomic no: 29
  Atomic orbitals: {1s: -320.78852, 2p: -33.481247, 2s: -38.14131, 3d: -0.202272,
    3p: -2.609244, 3s: -4.057453, 4s: -0.172056}
  Atomic radius: 1.35
  Atomic radius calculated: 1.45
  Boiling point: 3200 K
  Brinell hardness: 874 MN m<sup>-2</sup>
  Bulk modulus: 140 GPa
  Coefficient of linear thermal expansion: 16.5 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [2]
  Critical temperature: no data K
  Density of solid: 8920 kg m<sup>-3</sup>
  Electrical resistivity: 1.72 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Ar].3d<sup>10</sup>.4s<sup>1</sup>'
  ICSD oxidation states: [1, 2, 3]
  Ionic radii: {'1': 0.91, '2': 0.87, '3': 0.68}
  Liquid range: 1842.23 K
  Melting point: 1357.77 K
  Mendeleev no: 72
  Mineral hardness: '3.0'
  Molar volume: 7.11 cm<sup>3</sup>
  Name: Copper
  Oxidation states: [1, 2, 3, 4]
  Poissons ratio: '0.34'
  Reflectivity: 90 %
  Refractive index: no data
  Rigidity modulus: 48 GPa
  Shannon radii:
    1:
      II:
        ? ''
        : {crystal_radius: 0.6, ionic_radius: 0.46}
      IV:
        ? ''
        : {crystal_radius: 0.74, ionic_radius: 0.6}
      VI:
        ? ''
        : {crystal_radius: 0.91, ionic_radius: 0.77}
    2:
      IV:
        ? ''
        : {crystal_radius: 0.71, ionic_radius: 0.57}
      IVSQ:
        ? ''
        : {crystal_radius: 0.71, ionic_radius: 0.57}
      V:
        ? ''
        : {crystal_radius: 0.79, ionic_radius: 0.65}
      VI:
        ? ''
        : {crystal_radius: 0.87, ionic_radius: 0.73}
    3:
      VI:
        Low Spin: {crystal_radius: 0.68, ionic_radius: 0.54}
  Superconduction temperature: no data K
  Thermal conductivity: 400 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 1.4
  Velocity of sound: 3570 m s<sup>-1</sup>
  Vickers hardness: 369 MN m<sup>-2</sup>
  X: 1.9
  Youngs modulus: 130 GPa
Dy:
  Atomic mass: 162.5
  Atomic no: 66
  Atomic orbitals: {1s: -1843.229585, 2p: -281.558531, 2s: -295.342856, 3d: -47.4867,
    3p: -59.091931, 3s: -65.299442, 4d: -5.686352, 4f: -0.265302, 4p: -10.094091,
    4s: -12.551251, 5p: -0.90349, 5s: -1.547977, 6s: -0.132769}
  Atomic radius: 1.75
  Atomic radius calculated: 2.28
  Boiling point: 2840 K
  Brinell hardness: 500 MN m<sup>-2</sup>
  Bulk modulus: 41 GPa
  Coefficient of linear thermal expansion: 9.9 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [3]
  Critical temperature: no data K
  Density of solid: 8551 kg m<sup>-3</sup>
  Electrical resistivity: 92.6 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Xe].4f<sup>10</sup>.6s<sup>2</sup>'
  ICSD oxidation states: [3]
  Ionic radii: {'2': 1.21, '3': 1.052}
  Liquid range: 1160 K
  Melting point: 1680 K
  Mendeleev no: 24
  Mineral hardness: no data
  Molar volume: 19.01 cm<sup>3</sup>
  Name: Dysprosium
  Oxidation states: [2, 3]
  Poissons ratio: '0.25'
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 25 GPa
  Shannon radii:
    2:
      VI:
        ? ''
        : {crystal_radius: 1.21, ionic_radius: 1.07}
      VII:
        ? ''
        : {crystal_radius: 1.27, ionic_radius: 1.13}
      VIII:
        ? ''
        : {crystal_radius: 1.33, ionic_radius: 1.19}
    3:
      IX:
        ? ''
        : {crystal_radius: 1.223, ionic_radius: 1.083}
      VI:
        ? ''
        : {crystal_radius: 1.052, ionic_radius: 0.912}
      VII:
        ? ''
        : {crystal_radius: 1.11, ionic_radius: 0.97}
      VIII:
        ? ''
        : {crystal_radius: 1.167, ionic_radius: 1.027}
  Superconduction temperature: no data K
  Thermal conductivity: 11 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: 2710 m s<sup>-1</sup>
  Vickers hardness: 540 MN m<sup>-2</sup>
  X: 1.22
  Youngs modulus: 61 GPa
Er:
  Atomic mass: 167.259
  Atomic no: 68
  Atomic orbitals: {1s: -1961.799176, 2p: -302.01827, 2s: -316.310631, 3d: -51.682149,
    3p: -63.818655, 3s: -70.310142, 4d: -6.127443, 4f: -0.278577, 4p: -10.819574,
    4s: -13.423547, 5p: -0.935202, 5s: -1.616073, 6s: -0.134905}
  Atomic radius: 1.75
  Atomic radius calculated: 2.26
  Boiling point: 3141 K
  Brinell hardness: 814 MN m<sup>-2</sup>
  Bulk modulus: 44 GPa
  Coefficient of linear thermal expansion: 12.2 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [3]
  Critical temperature: no data K
  Density of solid: 9066 kg m<sup>-3</sup>
  Electrical resistivity: 86.0 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Xe].4f<sup>12</sup>.6s<sup>2</sup>'
  ICSD oxidation states: [3]
  Ionic radii: {'3': 1.03}
  Liquid range: 1371 K
  Melting point: 1802 K
  Mendeleev no: 22
  Mineral hardness: no data
  Molar volume: 18.46 cm<sup>3</sup>
  Name: Erbium
  Oxidation states: [3]
  Poissons ratio: '0.24'
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 28 GPa
  Shannon radii:
    3:
      IX:
        ? ''
        : {crystal_radius: 1.202, ionic_radius: 1.062}
      VI:
        ? ''
        : {crystal_radius: 1.03, ionic_radius: 0.89}
      VII:
        ? ''
        : {crystal_radius: 1.085, ionic_radius: 0.945}
      VIII:
        ? ''
        : {crystal_radius: 1.144, ionic_radius: 1.004}
  Superconduction temperature: no data K
  Thermal conductivity: 15 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: 2830 m s<sup>-1</sup>
  Vickers hardness: 589 MN m<sup>-2</sup>
  X: 1.24
  Youngs modulus: 70 GPa
Es:
  Atomic mass: 252.0
  Atomic no: 99
  Atomic orbitals: no data
  Atomic radius: no data
  Atomic radius calculated: no data
  Boiling point: no data K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: no data GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [3]
  Critical temperature: no data K
  Density of solid: no data kg m<sup>-3</sup>
  Electrical resistivity: no data 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Rn].5f<sup>11</sup>.7s<sup>2</sup>'
  Liquid range: no data K
  Melting point: 1133 K
  Mendeleev no: 38
  Mineral hardness: no data
  Molar volume: 28.52 cm<sup>3</sup>
  Name: Einsteinium
  Oxidation states: [2, 3]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: no data GPa
  Superconduction temperature: no data K
  Thermal conductivity: no data W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: no data m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 1.3
  Youngs modulus: no data GPa
Eu:
  Atomic mass: 151.964
  Atomic no: 63
  Atomic orbitals: {1s: -1672.309322, 2p: -252.176697, 2s: -265.199534, 3d: -41.465518,
    3p: -52.281987, 3s: -58.068128, 4d: -5.03242, 4f: -0.232773, 4p: -9.025455, 4s: -11.267747,
    5p: -0.853575, 5s: -1.444087, 6s: -0.129426}
  Atomic radius: 1.85
  Atomic radius calculated: 2.31
  Boiling point: 1800 K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: 8.3 GPa
  Coefficient of linear thermal expansion: 35 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [2, 3]
  Critical temperature: no data K
  Density of solid: 5244 kg m<sup>-3</sup>
  Electrical resistivity: 90 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Xe].4f<sup>7</sup>.6s<sup>2</sup>'
  ICSD oxidation states: [2, 3]
  Ionic radii: {'2': 1.31, '3': 1.087}
  Liquid range: 701 K
  Melting point: 1099 K
  Mendeleev no: 18
  Mineral hardness: no data
  Molar volume: 28.97 cm<sup>3</sup>
  Name: Europium
  Oxidation states: [2, 3]
  Poissons ratio: '0.15'
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 7.9 GPa
  Shannon radii:
    2:
      IX:
        ? ''
        : {crystal_radius: 1.44, ionic_radius: 1.3}
      VI:
        ? ''
        : {crystal_radius: 1.31, ionic_radius: 1.17}
      VII:
        ? ''
        : {crystal_radius: 1.34, ionic_radius: 1.2}
      VIII:
        ? ''
        : {crystal_radius: 1.39, ionic_radius: 1.25}
      X:
        ? ''
        : {crystal_radius: 1.49, ionic_radius: 1.35}
    3:
      IX:
        ? ''
        : {crystal_radius: 1.26, ionic_radius: 1.12}
      VI:
        ? ''
        : {crystal_radius: 1.087, ionic_radius: 0.947}
      VII:
        ? ''
        : {crystal_radius: 1.15, ionic_radius: 1.01}
      VIII:
        ? ''
        : {crystal_radius: 1.206, ionic_radius: 1.066}
  Superconduction temperature: no data K
  Thermal conductivity: 14 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: no data m s<sup>-1</sup>
  Vickers hardness: 167 MN m<sup>-2</sup>
  X: 1.2
  Youngs modulus: 18 GPa
F:
  Atomic mass: 18.9984032
  Atomic no: 9
  Atomic orbitals: {1s: -24.189391, 2p: -0.415606, 2s: -1.086859}
  Atomic radius: 0.5
  Atomic radius calculated: 0.42
  Boiling point: 85.03 K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: no data GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [-1]
  Critical temperature: 144 K
  Density of solid: no data kg m<sup>-3</sup>
  Electrical resistivity: no data 10<sup>-8</sup> &Omega; m
  Electronic structure: '[He].2s<sup>2</sup>.2p<sup>5</sup>'
  ICSD oxidation states: [-1]
  Ionic radii: {'-1': 1.19, '7': 0.22}
  Liquid range: 31.5 K
  Melting point: 53.53 K
  Mendeleev no: 102
  Mineral hardness: no data
  Molar volume: 11.20 cm<sup>3</sup>
  Name: Fluorine
  Oxidation states: [-1]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: '1.000195'
  Rigidity modulus: no data GPa
  Shannon radii:
    -1:
      II:
        ? ''
        : {crystal_radius: 1.145, ionic_radius: 1.285}
      III:
        ? ''
        : {crystal_radius: 1.16, ionic_radius: 1.3}
      IV:
        ? ''
        : {crystal_radius: 1.17, ionic_radius: 1.31}
      VI:
        ? ''
        : {crystal_radius: 1.19, ionic_radius: 1.33}
    7:
      VI:
        ? ''
        : {crystal_radius: 0.22, ionic_radius: 0.08}
  Superconduction temperature: no data K
  Thermal conductivity: 0.0277 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 1.47
  Velocity of sound: no data m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 3.98
  Youngs modulus: no data GPa
Fe:
  Atomic mass: 55.845
  Atomic no: 26
  Atomic orbitals: {1s: -254.225505, 2p: -25.551766, 2s: -29.56486, 3d: -0.295049,
    3p: -2.187523, 3s: -3.360621, 4s: -0.197978}
  Atomic radius: 1.4
  Atomic radius calculated: 1.56
  Boiling point: 3134 K
  Brinell hardness: 490 MN m<sup>-2</sup>
  Bulk modulus: 170 GPa
  Coefficient of linear thermal expansion: 11.8 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [2, 3]
  Critical temperature: no data K
  Density of solid: 7874 kg m<sup>-3</sup>
  Electrical resistivity: 10 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Ar].3d<sup>6</sup>.4s<sup>2</sup>'
  ICSD oxidation states: [2, 3]
  Ionic radii: {'2': 0.92, '3': 0.785}
  Ionic radii hs: {'2': 0.92, '3': 0.785}
  Ionic radii ls: {'2': 0.75, '3': 0.69, '4': 0.725, '6': 0.39}
  Liquid range: 1323 K
  Melting point: 1811 K
  Mendeleev no: 61
  Mineral hardness: '4.0'
  Molar volume: 7.09 cm<sup>3</sup>
  Name: Iron
  Oxidation states: [-2, -1, 1, 2, 3, 4, 5, 6]
  Poissons ratio: '0.29'
  Reflectivity: 65 %
  Refractive index: no data
  Rigidity modulus: 82 GPa
  Shannon radii:
    2:
      IV:
        High Spin: {crystal_radius: 0.77, ionic_radius: 0.63}
      IVSQ:
        High Spin: {crystal_radius: 0.78, ionic_radius: 0.64}
      VI:
        High Spin: {crystal_radius: 0.92, ionic_radius: 0.78}
        Low Spin: {crystal_radius: 0.75, ionic_radius: 0.61}
      VIII:
        High Spin: {crystal_radius: 1.06, ionic_radius: 0.92}
    3:
      IV:
        High Spin: {crystal_radius: 0.63, ionic_radius: 0.49}
      V:
        ? ''
        : {crystal_radius: 0.72, ionic_radius: 0.58}
      VI:
        High Spin: {crystal_radius: 0.785, ionic_radius: 0.645}
        Low Spin: {crystal_radius: 0.69, ionic_radius: 0.55}
      VIII:
        High Spin: {crystal_radius: 0.92, ionic_radius: 0.78}
    4:
      VI:
        ? ''
        : {crystal_radius: 0.725, ionic_radius: 0.585}
    6:
      IV:
        ? ''
        : {crystal_radius: 0.39, ionic_radius: 0.25}
  Superconduction temperature: no data K
  Thermal conductivity: 80 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: 4910 m s<sup>-1</sup>
  Vickers hardness: 608 MN m<sup>-2</sup>
  X: 1.83
  Youngs modulus: 211 GPa
Fm:
  Atomic mass: 257.0
  Atomic no: 100
  Atomic orbitals: no data
  Atomic radius: no data
  Atomic radius calculated: no data
  Boiling point: no data K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: no data GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [3]
  Critical temperature: no data K
  Density of solid: no data kg m<sup>-3</sup>
  Electrical resistivity: no data 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Rn].5f<sup>12</sup>.7s<sup>2</sup>'
  Liquid range: no data K
  Melting point: about 1800 K
  Mendeleev no: 37
  Mineral hardness: no data
  Molar volume: no data cm<sup>3</sup>
  Name: Fermium
  Oxidation states: [2, 3]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: no data GPa
  Superconduction temperature: no data K
  Thermal conductivity: no data W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: no data m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 1.3
  Youngs modulus: no data GPa
Fr:
  Atomic mass: 223.0
  Atomic no: 87
  Atomic orbitals: {1s: -3283.263399, 2p: -542.41424, 2s: -561.73045, 3d: -111.085223,
    3p: -128.607136, 3s: -137.959632, 4d: -20.812462, 4f: -10.050648, 4p: -28.648131,
    4s: -32.861013, 5d: -2.360991, 5p: -4.97328, 5s: -6.509516, 6p: -0.466197, 6s: -0.841848,
    7s: -0.076176}
  Atomic radius: no data
  Atomic radius calculated: no data
  Boiling point: no data K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: no data GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [1]
  Critical temperature: no data K
  Density of solid: no data kg m<sup>-3</sup>
  Electrical resistivity: no data 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Rn].7s<sup>1</sup>'
  Ionic radii: {'1': 1.94}
  Liquid range: no data K
  Melting point: maybe about 300 K
  Mendeleev no: 7
  Mineral hardness: no data
  Molar volume: no data cm<sup>3</sup>
  Name: Francium
  Oxidation states: [1]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: no data GPa
  Shannon radii:
    1:
      VI:
        ? ''
        : {crystal_radius: 1.94, ionic_radius: 1.8}
  Superconduction temperature: no data K
  Thermal conductivity: no data W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 3.48
  Velocity of sound: no data m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 0.7
  Youngs modulus: no data GPa
Ga:
  Atomic mass: 69.723
  Atomic no: 31
  Atomic orbitals: {1s: -370.170639, 2p: -40.093339, 2s: -45.200869, 3d: -0.736204,
    3p: -3.584666, 3s: -5.241645, 4p: -0.101634, 4s: -0.328019}
  Atomic radius: 1.3
  Atomic radius calculated: 1.36
  Boiling point: 2477 K
  Brinell hardness: 60 MN m<sup>-2</sup>
  Bulk modulus: no data GPa
  Coefficient of linear thermal expansion: 120 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [3]
  Critical temperature: no data K
  Density of solid: 5904 kg m<sup>-3</sup>
  Electrical resistivity: about  14 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Ar].3d<sup>10</sup>.4s<sup>2</sup>.4p<sup>1</sup>'
  ICSD oxidation states: [2, 3]
  Ionic radii: {'3': 0.76}
  Liquid range: 2174.09 K
  Melting point: 302.91 K
  Mendeleev no: 81
  Mineral hardness: '1.5'
  Molar volume: 11.80 cm<sup>3</sup>
  Name: Gallium
  Oxidation states: [1, 2, 3]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: no data GPa
  Shannon radii:
    3:
      IV:
        ? ''
        : {crystal_radius: 0.61, ionic_radius: 0.47}
      V:
        ? ''
        : {crystal_radius: 0.69, ionic_radius: 0.55}
      VI:
        ? ''
        : {crystal_radius: 0.76, ionic_radius: 0.62}
  Superconduction temperature: 1.083 K
  Thermal conductivity: 29 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 1.87
  Velocity of sound: 2740 m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 1.81
  Youngs modulus: no data GPa
Gd:
  Atomic mass: 157.25
  Atomic no: 64
  Atomic orbitals: {1s: -1728.625195, 2p: -262.081616, 2s: -275.36313, 3d: -43.754556,
    3p: -54.836922, 3s: -60.764408, 4d: -5.531835, 4f: -0.489012, 4p: -9.669866, 4s: -11.986486,
    5d: -0.12722, 5p: -0.978749, 5s: -1.608477, 6s: -0.143627}
  Atomic radius: 1.8
  Atomic radius calculated: 2.33
  Boiling point: 3523 K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: 38 GPa
  Coefficient of linear thermal expansion: 9.4 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [3]
  Critical temperature: no data K
  Density of solid: 7901 kg m<sup>-3</sup>
  Electrical resistivity: 131 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Xe].4f<sup>7</sup>.5d<sup>1</sup>.6s<sup>2</sup>'
  ICSD oxidation states: [3]
  Ionic radii: {'3': 1.075}
  Liquid range: 1938 K
  Melting point: 1585 K
  Mendeleev no: 27
  Mineral hardness: no data
  Molar volume: 19.90 cm<sup>3</sup>
  Name: Gadolinium
  Oxidation states: [1, 2, 3]
  Poissons ratio: '0.26'
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 22 GPa
  Shannon radii:
    3:
      IX:
        ? ''
        : {crystal_radius: 1.247, ionic_radius: 1.107}
      VI:
        ? ''
        : {crystal_radius: 1.078, ionic_radius: 0.938}
      VII:
        ? ''
        : {crystal_radius: 1.14, ionic_radius: 1.0}
      VIII:
        ? ''
        : {crystal_radius: 1.193, ionic_radius: 1.053}
  Superconduction temperature: 1.083 K
  Thermal conductivity: 11 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: 2680 m s<sup>-1</sup>
  Vickers hardness: 570 MN m<sup>-2</sup>
  X: 1.2
  Youngs modulus: 55 GPa
Ge:
  Atomic mass: 72.64
  Atomic no: 32
  Atomic orbitals: {1s: -396.292991, 2p: -43.720129, 2s: -49.055282, 3d: -1.117316,
    3p: -4.194822, 3s: -5.961472, 4p: -0.149882, 4s: -0.426523}
  Atomic radius: 1.25
  Atomic radius calculated: 1.25
  Boiling point: 3093 K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: no data GPa
  Coefficient of linear thermal expansion: 6 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [-4, 2, 4]
  Critical temperature: no data K
  Density of solid: 5323 kg m<sup>-3</sup>
  Electrical resistivity: about 50000 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Ar].3d<sup>10</sup>.4s<sup>2</sup>.4p<sup>2</sup>'
  ICSD oxidation states: [2, 3, 4]
  Ionic radii: {'2': 0.87, '4': 0.67}
  Liquid range: 1881.6 K
  Melting point: 1211.4 K
  Mendeleev no: 84
  Mineral hardness: '6.0'
  Molar volume: 13.63 cm<sup>3</sup>
  Name: Germanium
  Oxidation states: [-4, 1, 2, 3, 4]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: no data GPa
  Shannon radii:
    2:
      VI:
        ? ''
        : {crystal_radius: 0.87, ionic_radius: 0.73}
    4:
      IV:
        ? ''
        : {crystal_radius: 0.53, ionic_radius: 0.39}
      VI:
        ? ''
        : {crystal_radius: 0.67, ionic_radius: 0.53}
  Superconduction temperature: no data K
  Thermal conductivity: 60 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 2.11
  Velocity of sound: 5400 m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 2.01
  Youngs modulus: no data GPa
H:
  Atomic mass: 1.00794
  Atomic no: 1
  Atomic orbitals: {1s: -0.233471}
  Atomic radius: 0.25
  Atomic radius calculated: 0.53
  Boiling point: 20.28 K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: no data GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [-1, 1]
  Critical temperature: 33 K
  Density of solid: no data kg m<sup>-3</sup>
  Electrical resistivity: no data 10<sup>-8</sup> &Omega; m
  Electronic structure: 1s<sup>1</sup>
  ICSD oxidation states: [1, -1]
  Liquid range: 6.27 K
  Melting point: 14.01 K
  Mendeleev no: 103
  Mineral hardness: no data
  Molar volume: 11.42 cm<sup>3</sup>
  Name: Hydrogen
  Oxidation states: [-1, 1]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: 1.000132 (gas; liquid 1.12)(no units)
  Rigidity modulus: no data GPa
  Shannon radii:
    1:
      I:
        ? ''
        : {crystal_radius: -0.24, ionic_radius: -0.38}
      II:
        ? ''
        : {crystal_radius: -0.04, ionic_radius: -0.18}
  Superconduction temperature: no data K
  Thermal conductivity: 0.1805 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 1.2
  Velocity of sound: 1270 m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 2.2
  Youngs modulus: no data GPa
He:
  Atomic mass: 4.002602
  Atomic no: 2
  Atomic orbitals: {1s: -0.570425}
  Atomic radius: no data
  Atomic radius calculated: 0.31
  Boiling point: 4.22 K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: no data GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Critical temperature: 5.19 K
  Density of solid: no data kg m<sup>-3</sup>
  Electrical resistivity: no data 10<sup>-8</sup> &Omega; m
  Electronic structure: 1s<sup>2</sup>
  Liquid range: 3.27 K
  Max oxidation state: 0.0
  Melting point: 0.95 K
  Mendeleev no: 1
  Min oxidation state: 0.0
  Mineral hardness: no data
  Molar volume: 21.0 cm<sup>3</sup>
  Name: Helium
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: 1.000035 (gas; liquid 1.028)(no units)
  Rigidity modulus: no data GPa
  Superconduction temperature: no data K
  Thermal conductivity: 0.1513 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 1.4
  Velocity of sound: 970 m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  Youngs modulus: no data GPa
Hf:
  Atomic mass: 178.49
  Atomic no: 72
  Atomic orbitals: {1s: -2210.65199, 2p: -345.687023, 2s: -361.006527, 3d: -61.231443,
    3p: -74.452656, 3s: -81.522812, 4d: -7.676638, 4f: -0.871574, 4p: -12.971211,
    4s: -15.883625, 5d: -0.143805, 5p: -1.246441, 5s: -2.049828, 6s: -0.166465}
  Atomic radius: 1.55
  Atomic radius calculated: 2.08
  Boiling point: 4876 K
  Brinell hardness: 1700 MN m<sup>-2</sup>
  Bulk modulus: 110 GPa
  Coefficient of linear thermal expansion: 5.9 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [4]
  Critical temperature: no data K
  Density of solid: 13310 kg m<sup>-3</sup>
  Electrical resistivity: 34 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Xe].4f<sup>14</sup>.5d<sup>2</sup>.6s<sup>2</sup>'
  ICSD oxidation states: [4]
  Ionic radii: {'4': 0.85}
  Liquid range: 2370 K
  Melting point: 2506 K
  Mendeleev no: 50
  Mineral hardness: '5.5'
  Molar volume: 13.44 cm<sup>3</sup>
  Name: Hafnium
  Oxidation states: [2, 3, 4]
  Poissons ratio: '0.37'
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 30 GPa
  Shannon radii:
    4:
      IV:
        ? ''
        : {crystal_radius: 0.72, ionic_radius: 0.58}
      VI:
        ? ''
        : {crystal_radius: 0.85, ionic_radius: 0.71}
      VII:
        ? ''
        : {crystal_radius: 0.9, ionic_radius: 0.76}
      VIII:
        ? ''
        : {crystal_radius: 0.97, ionic_radius: 0.83}
  Superconduction temperature: 0.128 K
  Thermal conductivity: 23 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: 3010 m s<sup>-1</sup>
  Vickers hardness: 1760 MN m<sup>-2</sup>
  X: 1.3
  Youngs modulus: 78 GPa
Hg:
  Atomic mass: 200.59
  Atomic no: 80
  Atomic orbitals: {1s: -2755.022637, 2p: -443.848676, 2s: -461.27864, 3d: -84.845492,
    3p: -100.328031, 3s: -108.597921, 4d: -13.019221, 4f: -4.110291, 4p: -19.636187,
    4s: -23.222921, 5d: -0.452552, 5p: -2.261975, 5s: -3.423486, 6s: -0.205137}
  Atomic radius: 1.5
  Atomic radius calculated: 1.71
  Boiling point: 629.88 K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: 25 GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [1, 2]
  Critical temperature: 1750 K
  Density of solid: no data kg m<sup>-3</sup>
  Electrical resistivity: 96 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Xe].4f<sup>14</sup>.5d<sup>10</sup>.6s<sup>2</sup>'
  ICSD oxidation states: [1, 2]
  Ionic radii: {'1': 1.33, '2': 1.16}
  Liquid range: 395.56 K
  Melting point: 234.32 K
  Mendeleev no: 74
  Mineral hardness: '1.5'
  Molar volume: 14.09 cm<sup>3</sup>
  Name: Mercury
  Oxidation states: [1, 2, 4]
  Poissons ratio: no data
  Reflectivity: 73 %
  Refractive index: '1.000933'
  Rigidity modulus: no data GPa
  Shannon radii:
    1:
      III:
        ? ''
        : {crystal_radius: 1.11, ionic_radius: 0.97}
      VI:
        ? ''
        : {crystal_radius: 1.33, ionic_radius: 1.19}
    2:
      II:
        ? ''
        : {crystal_radius: 0.83, ionic_radius: 0.69}
      IV:
        ? ''
        : {crystal_radius: 1.1, ionic_radius: 0.96}
      VI:
        ? ''
        : {crystal_radius: 1.16, ionic_radius: 1.02}
      VIII:
        ? ''
        : {crystal_radius: 1.28, ionic_radius: 1.14}
  Superconduction temperature: 3.95 K
  Thermal conductivity: 8.3 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 1.55
  Velocity of sound: 1407 m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 2.0
  Youngs modulus: no data GPa
Ho:
  Atomic mass: 164.93032
  Atomic no: 67
  Atomic orbitals: {1s: -1902.051908, 2p: -291.700994, 2s: -305.739294, 3d: -49.565996,
    3p: -61.436304, 3s: -67.785492, 4d: -5.906195, 4f: -0.272677, 4p: -10.455303,
    4s: -12.985498, 5p: -0.919463, 5s: -1.582088, 6s: -0.133845}
  Atomic radius: 1.75
  Atomic radius calculated: no data
  Boiling point: 2993 K
  Brinell hardness: 746 MN m<sup>-2</sup>
  Bulk modulus: 40 GPa
  Coefficient of linear thermal expansion: 11.2 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [3]
  Critical temperature: no data K
  Density of solid: 8795 kg m<sup>-3</sup>
  Electrical resistivity: 81.4 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Xe].4f<sup>11</sup>.6s<sup>2</sup>'
  ICSD oxidation states: [3]
  Ionic radii: {'3': 1.041}
  Liquid range: 1259 K
  Melting point: 1734 K
  Mendeleev no: 23
  Mineral hardness: no data
  Molar volume: 18.74 cm<sup>3</sup>
  Name: Holmium
  Oxidation states: [3]
  Poissons ratio: '0.23'
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 26 GPa
  Shannon radii:
    3:
      IX:
        ? ''
        : {crystal_radius: 1.212, ionic_radius: 1.072}
      VI:
        ? ''
        : {crystal_radius: 1.041, ionic_radius: 0.901}
      VIII:
        ? ''
        : {crystal_radius: 1.155, ionic_radius: 1.015}
      X:
        ? ''
        : {crystal_radius: 1.26, ionic_radius: 1.12}
  Superconduction temperature: no data K
  Thermal conductivity: 16 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: 2760 m s<sup>-1</sup>
  Vickers hardness: 481 MN m<sup>-2</sup>
  X: 1.23
  Youngs modulus: 65 GPa
I:
  Atomic mass: 126.90447
  Atomic no: 53
  Atomic orbitals: {1s: -1161.787047, 2p: -164.603788, 2s: -175.073804, 3d: -22.600693,
    3p: -30.831092, 3s: -35.243351, 4d: -1.938179, 4p: -4.572522, 4s: -6.115811, 5p: -0.267904,
    5s: -0.596339}
  Atomic radius: 1.4
  Atomic radius calculated: 1.15
  Boiling point: 457.4 K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: 7.7 GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [-1, 1, 3, 5, 7]
  Critical temperature: 819 K
  Density of solid: 4940 kg m<sup>-3</sup>
  Electrical resistivity: '&gt; 10<sup>15</sup>10<sup>-8</sup> &Omega; m'
  Electronic structure: '[Kr].4d<sup>10</sup>.5s<sup>2</sup>.5p<sup>5</sup>'
  ICSD oxidation states: [5, -1]
  Ionic radii: {'-1': 2.06, '5': 1.09, '7': 0.67}
  Liquid range: 70.55 K
  Melting point: 386.85 K
  Mendeleev no: 97
  Mineral hardness: no data
  Molar volume: 25.72 cm<sup>3</sup>
  Name: Iodine
  Oxidation states: [-1, 1, 3, 5, 7]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: no data GPa
  Shannon radii:
    -1:
      VI:
        ? ''
        : {crystal_radius: 2.06, ionic_radius: 2.2}
    5:
      IIIPY:
        ? ''
        : {crystal_radius: 0.58, ionic_radius: 0.44}
      VI:
        ? ''
        : {crystal_radius: 1.09, ionic_radius: 0.95}
    7:
      IV:
        ? ''
        : {crystal_radius: 0.56, ionic_radius: 0.42}
      VI:
        ? ''
        : {crystal_radius: 0.67, ionic_radius: 0.53}
  Superconduction temperature: no data K
  Thermal conductivity: 0.449 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 1.98
  Velocity of sound: no data m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 2.66
  Youngs modulus: no data GPa
In:
  Atomic mass: 114.818
  Atomic no: 49
  Atomic orbitals: {1s: -983.647445, 2p: -134.628845, 2s: -144.078357, 3d: -16.139823,
    3p: -23.345778, 3s: -27.2206, 4d: -0.730481, 4p: -2.795832, 4s: -4.062639, 5p: -0.101782,
    5s: -0.290497}
  Atomic radius: 1.55
  Atomic radius calculated: 1.56
  Boiling point: 2345 K
  Brinell hardness: 8.83 MN m<sup>-2</sup>
  Bulk modulus: no data GPa
  Coefficient of linear thermal expansion: 32.1 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [3]
  Critical temperature: no data K
  Density of solid: 7310 kg m<sup>-3</sup>
  Electrical resistivity: 8 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Kr].4d<sup>10</sup>.5s<sup>2</sup>.5p<sup>1</sup>'
  ICSD oxidation states: [1, 2, 3]
  Ionic radii: {'3': 0.94}
  Liquid range: 1915.25 K
  Melting point: 429.75 K
  Mendeleev no: 79
  Mineral hardness: '1.2'
  Molar volume: 15.76 cm<sup>3</sup>
  Name: Indium
  Oxidation states: [1, 2, 3]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: no data GPa
  Shannon radii:
    3:
      IV:
        ? ''
        : {crystal_radius: 0.76, ionic_radius: 0.62}
      VI:
        ? ''
        : {crystal_radius: 0.94, ionic_radius: 0.8}
      VIII:
        ? ''
        : {crystal_radius: 1.06, ionic_radius: 0.92}
  Superconduction temperature: 3.41 K
  Thermal conductivity: 82 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 1.93
  Velocity of sound: 1215 m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 1.78
  Youngs modulus: 11 GPa
Ir:
  Atomic mass: 192.217
  Atomic no: 77
  Atomic orbitals: {1s: -2543.761342, 2p: -405.526834, 2s: -422.159424, 3d: -75.485027,
    3p: -90.108427, 3s: -97.923081, 4d: -10.856593, 4f: -2.738339, 4p: -16.966578,
    4s: -20.29429, 5d: -0.335189, 5p: -1.883349, 5s: -2.909174, 6s: -0.195511}
  Atomic radius: 1.35
  Atomic radius calculated: 1.8
  Boiling point: 4701 K
  Brinell hardness: 1670 MN m<sup>-2</sup>
  Bulk modulus: 320 GPa
  Coefficient of linear thermal expansion: 6.4 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [3, 4]
  Critical temperature: no data K
  Density of solid: 22650 kg m<sup>-3</sup>
  Electrical resistivity: 4.7 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Xe].4f<sup>14</sup>.5d<sup>7</sup>.6s<sup>2</sup>'
  ICSD oxidation states: [3, 4, 5]
  Ionic radii: {'3': 0.82, '4': 0.765, '5': 0.71}
  Liquid range: 1962 K
  Melting point: 2739 K
  Mendeleev no: 66
  Mineral hardness: '6.5'
  Molar volume: 8.52 cm<sup>3</sup>
  Name: Iridium
  Oxidation states: [-3, -1, 1, 2, 3, 4, 5, 6]
  Poissons ratio: '0.26'
  Reflectivity: 78 %
  Refractive index: no data
  Rigidity modulus: 210 GPa
  Shannon radii:
    3:
      VI:
        ? ''
        : {crystal_radius: 0.82, ionic_radius: 0.68}
    4:
      VI:
        ? ''
        : {crystal_radius: 0.765, ionic_radius: 0.625}
    5:
      VI:
        ? ''
        : {crystal_radius: 0.71, ionic_radius: 0.57}
  Superconduction temperature: 0.11 K
  Thermal conductivity: 150 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: 4825 m s<sup>-1</sup>
  Vickers hardness: 1760 MN m<sup>-2</sup>
  X: 2.2
  Youngs modulus: 528 GPa
K:
  Atomic mass: 39.0983
  Atomic no: 19
  Atomic orbitals: {1s: -128.414957, 2p: -10.283851, 2s: -12.839001, 3p: -0.693776,
    3s: -1.281897, 4s: -0.088815}
  Atomic radius: 2.2
  Atomic radius calculated: 2.43
  Boiling point: 1032 K
  Brinell hardness: 0.363 MN m<sup>-2</sup>
  Bulk modulus: 3.1 GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [1]
  Critical temperature: 2223 K
  Density of solid: 856 kg m<sup>-3</sup>
  Electrical resistivity: 7.5 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Ar].4s<sup>1</sup>'
  ICSD oxidation states: [1]
  Ionic radii: {'1': 1.52}
  Liquid range: 695.47 K
  Melting point: 336.53 K
  Mendeleev no: 10
  Mineral hardness: '0.4'
  Molar volume: 45.94 cm<sup>3</sup>
  Name: Potassium
  Oxidation states: [-1, 1]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 1.3 GPa
  Shannon radii:
    1:
      IV:
        ? ''
        : {crystal_radius: 1.51, ionic_radius: 1.37}
      IX:
        ? ''
        : {crystal_radius: 1.69, ionic_radius: 1.55}
      VI:
        ? ''
        : {crystal_radius: 1.52, ionic_radius: 1.38}
      VII:
        ? ''
        : {crystal_radius: 1.6, ionic_radius: 1.46}
      VIII:
        ? ''
        : {crystal_radius: 1.65, ionic_radius: 1.51}
      X:
        ? ''
        : {crystal_radius: 1.73, ionic_radius: 1.59}
      XII:
        ? ''
        : {crystal_radius: 1.78, ionic_radius: 1.64}
  Superconduction temperature: no data K
  Thermal conductivity: 100 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 2.75
  Velocity of sound: 2000 m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 0.82
  Youngs modulus: no data GPa
Kr:
  Atomic mass: 83.798
  Atomic no: 36
  Atomic orbitals: {1s: -509.982989, 2p: -60.017328, 2s: -66.285953, 3d: -3.074109,
    3p: -7.086634, 3s: -9.315192, 4p: -0.34634, 4s: -0.820574}
  Atomic radius: no data
  Atomic radius calculated: 0.88
  Boiling point: 119.93 K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: no data GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Critical temperature: 209.4 K
  Density of solid: no data kg m<sup>-3</sup>
  Electrical resistivity: no data 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Ar].3d<sup>10</sup>.4s<sup>2</sup>.4p<sup>6</sup>'
  Liquid range: 4.14 K
  Max oxidation state: 0.0
  Melting point: 115.79 K
  Mendeleev no: 4
  Min oxidation state: 0.0
  Mineral hardness: no data
  Molar volume: 27.99 cm<sup>3</sup>
  Name: Krypton
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: '1.000427'
  Rigidity modulus: no data GPa
  Superconduction temperature: no data K
  Thermal conductivity: 0.00943 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 2.02
  Velocity of sound: 1120 m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 3.0
  Youngs modulus: no data GPa
La:
  Atomic mass: 138.90547
  Atomic no: 57
  Atomic orbitals: {1s: -1355.622446, 2p: -198.325243, 2s: -209.831151, 3d: -30.626696,
    3p: -39.895838, 3s: -44.856283, 4d: -3.95801, 4p: -7.167724, 4s: -9.000543, 5d: -0.141085,
    5p: -0.824498, 5s: -1.324936, 6s: -0.132233}
  Atomic radius: 1.95
  Atomic radius calculated: no data
  Boiling point: 3743 K
  Brinell hardness: 363 MN m<sup>-2</sup>
  Bulk modulus: 28 GPa
  Coefficient of linear thermal expansion: 12.1 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [3]
  Critical temperature: no data K
  Density of solid: 6146 kg m<sup>-3</sup>
  Electrical resistivity: 61.5 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Xe].5d<sup>1</sup>.6s<sup>2</sup>'
  ICSD oxidation states: [2, 3]
  Ionic radii: {'3': 1.172}
  Liquid range: 2550 K
  Melting point: 1193 K
  Mendeleev no: 33
  Mineral hardness: '2.5'
  Molar volume: 22.39 cm<sup>3</sup>
  Name: Lanthanum
  Oxidation states: [2, 3]
  Poissons ratio: '0.28'
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 14 GPa
  Shannon radii:
    3:
      IX:
        ? ''
        : {crystal_radius: 1.356, ionic_radius: 1.216}
      VI:
        ? ''
        : {crystal_radius: 1.172, ionic_radius: 1.032}
      VII:
        ? ''
        : {crystal_radius: 1.24, ionic_radius: 1.1}
      VIII:
        ? ''
        : {crystal_radius: 1.3, ionic_radius: 1.16}
      X:
        ? ''
        : {crystal_radius: 1.41, ionic_radius: 1.27}
      XII:
        ? ''
        : {crystal_radius: 1.5, ionic_radius: 1.36}
  Superconduction temperature: 6.00 K
  Thermal conductivity: 13 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: 2475 m s<sup>-1</sup>
  Vickers hardness: 491 MN m<sup>-2</sup>
  X: 1.1
  Youngs modulus: 37 GPa
Li:
  Atomic mass: 6.941
  Atomic no: 3
  Atomic orbitals: {1s: -1.878564, 2s: -0.10554}
  Atomic radius: 1.45
  Atomic radius calculated: 1.67
  Boiling point: 1615 K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: 11 GPa
  Coefficient of linear thermal expansion: 46 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [1]
  Critical temperature: 3223 K
  Density of solid: 535 kg m<sup>-3</sup>
  Electrical resistivity: 9.5 10<sup>-8</sup> &Omega; m
  Electronic structure: '[He].2s<sup>1</sup>'
  ICSD oxidation states: [1]
  Ionic radii: {'1': 0.9}
  Liquid range: 1161.31 K
  Melting point: 453.69 K
  Mendeleev no: 12
  Mineral hardness: '0.6'
  Molar volume: 13.02 cm<sup>3</sup>
  Name: Lithium
  Oxidation states: [1]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 4.2 GPa
  Shannon radii:
    1:
      IV:
        ? ''
        : {crystal_radius: 0.73, ionic_radius: 0.59}
      VI:
        ? ''
        : {crystal_radius: 0.9, ionic_radius: 0.76}
      VIII:
        ? ''
        : {crystal_radius: 1.06, ionic_radius: 0.92}
  Superconduction temperature: no data K
  Thermal conductivity: 85 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 1.82
  Velocity of sound: 6000 m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 0.98
  Youngs modulus: 4.9 GPa
Lr:
  Atomic mass: 262.0
  Atomic no: 103
  Atomic orbitals: no data
  Atomic radius: no data
  Atomic radius calculated: no data
  Boiling point: no data K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: no data GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [3]
  Critical temperature: no data K
  Density of solid: no data kg m<sup>-3</sup>
  Electrical resistivity: no data 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Rn].5f<sup>14</sup>.7s<sup>2</sup>.7p<sup>1</sup> (tentative)'
  Liquid range: no data K
  Melting point: about 1900 K
  Mendeleev no: 34
  Mineral hardness: no data
  Molar volume: no data cm<sup>3</sup>
  Name: Lawrencium
  Oxidation states: [3]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: no data GPa
  Superconduction temperature: no data K
  Thermal conductivity: no data W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: no data m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 1.3
  Youngs modulus: no data GPa
Lu:
  Atomic mass: 174.967
  Atomic no: 71
  Atomic orbitals: {1s: -2146.885351, 2p: -334.330902, 2s: -349.390492, 3d: -58.592982,
    3p: -71.538779, 3s: -78.462398, 4d: -7.113364, 4f: -0.568096, 4p: -12.250904,
    4s: -15.08337, 5d: -0.103686, 5p: -1.111991, 5s: -1.872086, 6s: -0.155112}
  Atomic radius: 1.75
  Atomic radius calculated: 2.17
  Boiling point: 3675 K
  Brinell hardness: 893 MN m<sup>-2</sup>
  Bulk modulus: 48 GPa
  Coefficient of linear thermal expansion: 9.9 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [3]
  Critical temperature: no data K
  Density of solid: 9841 kg m<sup>-3</sup>
  Electrical resistivity: 58 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Xe].4f<sup>14</sup>.5d<sup>1</sup>.6s<sup>2</sup>'
  ICSD oxidation states: [3]
  Ionic radii: {'3': 1.001}
  Liquid range: 1750 K
  Melting point: 1925 K
  Mendeleev no: 20
  Mineral hardness: no data
  Molar volume: 17.78 cm<sup>3</sup>
  Name: Lutetium
  Oxidation states: [3]
  Poissons ratio: '0.26'
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 27 GPa
  Shannon radii:
    3:
      IX:
        ? ''
        : {crystal_radius: 1.172, ionic_radius: 1.032}
      VI:
        ? ''
        : {crystal_radius: 1.001, ionic_radius: 0.861}
      VIII:
        ? ''
        : {crystal_radius: 1.117, ionic_radius: 0.977}
  Superconduction temperature: 0.022 K
  Thermal conductivity: 16 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: no data m s<sup>-1</sup>
  Vickers hardness: 1160 MN m<sup>-2</sup>
  X: 1.27
  Youngs modulus: 69 GPa
Md:
  Atomic mass: 258.0
  Atomic no: 101
  Atomic orbitals: no data
  Atomic radius: no data
  Atomic radius calculated: no data
  Boiling point: no data K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: no data GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [3]
  Critical temperature: no data K
  Density of solid: no data kg m<sup>-3</sup>
  Electrical resistivity: no data 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Rn].5f<sup>13</sup>.7s<sup>2</sup>'
  Liquid range: no data K
  Melting point: about 1100 K
  Mendeleev no: 36
  Mineral hardness: no data
  Molar volume: no data cm<sup>3</sup>
  Name: Mendelevium
  Oxidation states: [2, 3]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: no data GPa
  Superconduction temperature: no data K
  Thermal conductivity: no data W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: no data m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 1.3
  Youngs modulus: no data GPa
Mg:
  Atomic mass: 24.305
  Atomic no: 12
  Atomic orbitals: {1s: -45.973167, 2p: -1.71897, 2s: -2.903746, 3s: -0.175427}
  Atomic radius: 1.5
  Atomic radius calculated: 1.45
  Boiling point: 1363 K
  Brinell hardness: 260 MN m<sup>-2</sup>
  Bulk modulus: 45 GPa
  Coefficient of linear thermal expansion: 8.2 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [2]
  Critical temperature: no data K
  Density of solid: 1738 kg m<sup>-3</sup>
  Electrical resistivity: 4.4 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Ne].3s<sup>2</sup>'
  ICSD oxidation states: [2]
  Ionic radii: {'2': 0.86}
  Liquid range: 440 K
  Melting point: 923 K
  Mendeleev no: 73
  Mineral hardness: '2.5'
  Molar volume: 14.00 cm<sup>3</sup>
  Name: Magnesium
  Oxidation states: [1, 2]
  Poissons ratio: '0.29'
  Reflectivity: 74 %
  Refractive index: no data
  Rigidity modulus: 17 GPa
  Shannon radii:
    2:
      IV:
        ? ''
        : {crystal_radius: 0.71, ionic_radius: 0.57}
      V:
        ? ''
        : {crystal_radius: 0.8, ionic_radius: 0.66}
      VI:
        ? ''
        : {crystal_radius: 0.86, ionic_radius: 0.72}
      VIII:
        ? ''
        : {crystal_radius: 1.03, ionic_radius: 0.89}
  Superconduction temperature: no data K
  Thermal conductivity: 160 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 1.73
  Velocity of sound: 4602 m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 1.31
  Youngs modulus: 45 GPa
Mn:
  Atomic mass: 54.938045
  Atomic no: 25
  Atomic orbitals: {1s: -233.696912, 2p: -23.066297, 2s: -26.866646, 3d: -0.26654,
    3p: -1.99145, 3s: -3.076637, 4s: -0.191136}
  Atomic radius: 1.4
  Atomic radius calculated: 1.61
  Boiling point: 2334 K
  Brinell hardness: 196 MN m<sup>-2</sup>
  Bulk modulus: 120 GPa
  Coefficient of linear thermal expansion: 21.7 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [2, 4, 7]
  Critical temperature: no data K
  Density of solid: 7470 kg m<sup>-3</sup>
  Electrical resistivity: 144 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Ar].3d<sup>5</sup>.4s<sup>2</sup>'
  ICSD oxidation states: [2, 3, 4, 7]
  Ionic radii: {'2': 0.97, '3': 0.785, '4': 0.67, '5': 0.47, '6': 0.395, '7': 0.6}
  Ionic radii hs: {'2': 0.97, '3': 0.785}
  Ionic radii ls: {'2': 0.81, '3': 0.72, '4': 0.67, '5': 0.47, '6': 0.395, '7': 0.6}
  Liquid range: 815 K
  Melting point: 1519 K
  Mendeleev no: 60
  Mineral hardness: '6.0'
  Molar volume: 7.35 cm<sup>3</sup>
  Name: Manganese
  Oxidation states: [-3, -2, -1, 1, 2, 3, 4, 5, 6, 7]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: no data GPa
  Shannon radii:
    2:
      IV:
        High Spin: {crystal_radius: 0.8, ionic_radius: 0.66}
      V:
        High Spin: {crystal_radius: 0.89, ionic_radius: 0.75}
      VI:
        High Spin: {crystal_radius: 0.97, ionic_radius: 0.83}
        Low Spin: {crystal_radius: 0.81, ionic_radius: 0.67}
      VII:
        High Spin: {crystal_radius: 1.04, ionic_radius: 0.9}
      VIII:
        ? ''
        : {crystal_radius: 1.1, ionic_radius: 0.96}
    3:
      V:
        ? ''
        : {crystal_radius: 0.72, ionic_radius: 0.58}
      VI:
        High Spin: {crystal_radius: 0.785, ionic_radius: 0.645}
        Low Spin: {crystal_radius: 0.72, ionic_radius: 0.58}
    4:
      IV:
        ? ''
        : {crystal_radius: 0.53, ionic_radius: 0.39}
      VI:
        ? ''
        : {crystal_radius: 0.67, ionic_radius: 0.53}
    5:
      IV:
        ? ''
        : {crystal_radius: 0.47, ionic_radius: 0.33}
    6:
      IV:
        ? ''
        : {crystal_radius: 0.395, ionic_radius: 0.255}
    7:
      IV:
        ? ''
        : {crystal_radius: 0.39, ionic_radius: 0.25}
      VI:
        ? ''
        : {crystal_radius: 0.6, ionic_radius: 0.46}
  Superconduction temperature: no data K
  Thermal conductivity: 7.8 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: 5150 m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 1.55
  Youngs modulus: 198 GPa
Mo:
  Atomic mass: 95.94
  Atomic no: 42
  Atomic orbitals: {1s: -709.232119, 2p: -90.791541, 2s: -98.503638, 3d: -8.257721,
    3p: -13.71481, 3s: -16.681545, 4d: -0.153347, 4p: -1.39005, 4s: -2.234824, 5s: -0.14788}
  Atomic radius: 1.45
  Atomic radius calculated: 1.9
  Boiling point: 4912 K
  Brinell hardness: 1500 MN m<sup>-2</sup>
  Bulk modulus: 230 GPa
  Coefficient of linear thermal expansion: 4.8 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [4, 6]
  Critical temperature: no data K
  Density of solid: 10280 kg m<sup>-3</sup>
  Electrical resistivity: 5.5 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Kr].4d<sup>5</sup>.5s<sup>1</sup>'
  ICSD oxidation states: [2, 3, 4, 5, 6]
  Ionic radii: {'3': 0.83, '4': 0.79, '5': 0.75, '6': 0.73}
  Liquid range: 2016 K
  Melting point: 2896 K
  Mendeleev no: 56
  Mineral hardness: '5.5'
  Molar volume: 9.38 cm<sup>3</sup>
  Name: Molybdenum
  Oxidation states: [-2, -1, 1, 2, 3, 4, 5, 6]
  Poissons ratio: '0.31'
  Reflectivity: 58 %
  Refractive index: no data
  Rigidity modulus: 20 GPa
  Shannon radii:
    3:
      VI:
        ? ''
        : {crystal_radius: 0.83, ionic_radius: 0.69}
    4:
      VI:
        ? ''
        : {crystal_radius: 0.79, ionic_radius: 0.65}
    5:
      IV:
        ? ''
        : {crystal_radius: 0.6, ionic_radius: 0.46}
      VI:
        ? ''
        : {crystal_radius: 0.75, ionic_radius: 0.61}
    6:
      IV:
        ? ''
        : {crystal_radius: 0.55, ionic_radius: 0.41}
      V:
        ? ''
        : {crystal_radius: 0.64, ionic_radius: 0.5}
      VI:
        ? ''
        : {crystal_radius: 0.73, ionic_radius: 0.59}
      VII:
        ? ''
        : {crystal_radius: 0.87, ionic_radius: 0.73}
  Superconduction temperature: 0.915 K
  Thermal conductivity: 139 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: 6190 m s<sup>-1</sup>
  Vickers hardness: 1530 MN m<sup>-2</sup>
  X: 2.16
  Youngs modulus: 329 GPa
N:
  Atomic mass: 14.0067
  Atomic no: 7
  Atomic orbitals: {1s: -14.011501, 2p: -0.266297, 2s: -0.676151}
  Atomic radius: 0.65
  Atomic radius calculated: 0.56
  Boiling point: 77.36 K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: no data GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [-3, 3, 5]
  Critical temperature: 126.2 K
  Density of solid: no data kg m<sup>-3</sup>
  Electrical resistivity: no data 10<sup>-8</sup> &Omega; m
  Electronic structure: '[He].2s<sup>2</sup>.2p<sup>3</sup>'
  ICSD oxidation states: [1, 3, 5, -1, -3, -2]
  Ionic radii: {'-3': 1.32, '3': 0.3, '5': 0.27}
  Liquid range: 14.31 K
  Melting point: 63.05 K
  Mendeleev no: 100
  Mineral hardness: no data
  Molar volume: 13.54 cm<sup>3</sup>
  Name: Nitrogen
  Oxidation states: [-3, -2, -1, 1, 2, 3, 4, 5]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: 1.000298 (gas; liquid 1.197)(no units)
  Rigidity modulus: no data GPa
  Shannon radii:
    -3:
      IV:
        ? ''
        : {crystal_radius: 1.32, ionic_radius: 1.46}
    3:
      VI:
        ? ''
        : {crystal_radius: 0.3, ionic_radius: 0.16}
    5:
      III:
        ? ''
        : {crystal_radius: 0.044, ionic_radius: -0.104}
      VI:
        ? ''
        : {crystal_radius: 0.27, ionic_radius: 0.13}
  Superconduction temperature: no data K
  Thermal conductivity: 0.02583 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 1.55
  Velocity of sound: 333.6 m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 3.04
  Youngs modulus: no data GPa
Na:
  Atomic mass: 22.98976928
  Atomic no: 11
  Atomic orbitals: {1s: -37.719975, 2p: -1.060636, 2s: -2.063401, 3s: -0.103415}
  Atomic radius: 1.8
  Atomic radius calculated: 1.9
  Boiling point: 1156 K
  Brinell hardness: 0.69 MN m<sup>-2</sup>
  Bulk modulus: 6.3 GPa
  Coefficient of linear thermal expansion: 71 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [1]
  Critical temperature: 2573 K
  Density of solid: 968 kg m<sup>-3</sup>
  Electrical resistivity: 4.9 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Ne].3s<sup>1</sup>'
  ICSD oxidation states: [1]
  Ionic radii: {'1': 1.16}
  Liquid range: 785.13 K
  Melting point: 370.87 K
  Mendeleev no: 11
  Mineral hardness: '0.5'
  Molar volume: 23.78 cm<sup>3</sup>
  Name: Sodium
  Oxidation states: [-1, 1]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 3.3 GPa
  Shannon radii:
    1:
      IV:
        ? ''
        : {crystal_radius: 1.13, ionic_radius: 0.99}
      IX:
        ? ''
        : {crystal_radius: 1.38, ionic_radius: 1.24}
      V:
        ? ''
        : {crystal_radius: 1.14, ionic_radius: 1.0}
      VI:
        ? ''
        : {crystal_radius: 1.16, ionic_radius: 1.02}
      VII:
        ? ''
        : {crystal_radius: 1.26, ionic_radius: 1.12}
      VIII:
        ? ''
        : {crystal_radius: 1.32, ionic_radius: 1.18}
      XII:
        ? ''
        : {crystal_radius: 1.53, ionic_radius: 1.39}
  Superconduction temperature: no data K
  Thermal conductivity: 140 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 2.27
  Velocity of sound: 3200 m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 0.93
  Youngs modulus: 10 GPa
Nb:
  Atomic mass: 92.90638
  Atomic no: 41
  Atomic orbitals: {1s: -673.76253, 2p: -85.272175, 2s: -92.74086, 3d: -7.339839,
    3p: -12.552855, 3s: -15.393727, 4d: -0.125252, 4p: -1.250049, 4s: -2.036693, 5s: -0.144272}
  Atomic radius: 1.45
  Atomic radius calculated: 1.98
  Boiling point: 5017 K
  Brinell hardness: 736 MN m<sup>-2</sup>
  Bulk modulus: 170 GPa
  Coefficient of linear thermal expansion: 7.3 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [5]
  Critical temperature: no data K
  Density of solid: 8570 kg m<sup>-3</sup>
  Electrical resistivity: 15.2 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Kr].4d<sup>4</sup>.5s<sup>1</sup>'
  ICSD oxidation states: [2, 3, 4, 5]
  Ionic radii: {'3': 0.86, '4': 0.82, '5': 0.78}
  Liquid range: 2267 K
  Melting point: 2750 K
  Mendeleev no: 53
  Mineral hardness: '6.0'
  Molar volume: 10.83 cm<sup>3</sup>
  Name: Niobium
  Oxidation states: [-1, 2, 3, 4, 5]
  Poissons ratio: '0.40'
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 38 GPa
  Shannon radii:
    3:
      VI:
        ? ''
        : {crystal_radius: 0.86, ionic_radius: 0.72}
    4:
      VI:
        ? ''
        : {crystal_radius: 0.82, ionic_radius: 0.68}
      VIII:
        ? ''
        : {crystal_radius: 0.93, ionic_radius: 0.79}
    5:
      IV:
        ? ''
        : {crystal_radius: 0.62, ionic_radius: 0.48}
      VI:
        ? ''
        : {crystal_radius: 0.78, ionic_radius: 0.64}
      VII:
        ? ''
        : {crystal_radius: 0.83, ionic_radius: 0.69}
      VIII:
        ? ''
        : {crystal_radius: 0.88, ionic_radius: 0.74}
  Superconduction temperature: 9.25 K
  Thermal conductivity: 54 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: 3480 m s<sup>-1</sup>
  Vickers hardness: 1320 MN m<sup>-2</sup>
  X: 1.6
  Youngs modulus: 105 GPa
Nd:
  Atomic mass: 144.242
  Atomic no: 60
  Atomic orbitals: {1s: -1509.698955, 2p: -224.351816, 2s: -236.613572, 3d: -35.754515,
    3p: -45.791219, 3s: -51.161263, 4d: -4.377027, 4f: -0.179508, 4p: -7.96782, 4s: -10.000891,
    5p: -0.798503, 5s: -1.334934, 6s: -0.125796}
  Atomic radius: 1.85
  Atomic radius calculated: 2.06
  Boiling point: 3373 K
  Brinell hardness: 265 MN m<sup>-2</sup>
  Bulk modulus: 32 GPa
  Coefficient of linear thermal expansion: 9.6 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [3]
  Critical temperature: no data K
  Density of solid: 6800 kg m<sup>-3</sup>
  Electrical resistivity: 64.3 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Xe].4f<sup>4</sup>.6s<sup>2</sup>'
  ICSD oxidation states: [2, 3]
  Ionic radii: {'2': 1.43, '3': 1.123}
  Liquid range: 2076 K
  Melting point: 1297 K
  Mendeleev no: 30
  Mineral hardness: no data
  Molar volume: 20.59 cm<sup>3</sup>
  Name: Neodymium
  Oxidation states: [2, 3]
  Poissons ratio: '0.28'
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 16 GPa
  Shannon radii:
    2:
      IX:
        ? ''
        : {crystal_radius: 1.49, ionic_radius: 1.35}
      VIII:
        ? ''
        : {crystal_radius: 1.43, ionic_radius: 1.29}
    3:
      IX:
        ? ''
        : {crystal_radius: 1.303, ionic_radius: 1.163}
      VI:
        ? ''
        : {crystal_radius: 1.123, ionic_radius: 0.983}
      VIII:
        ? ''
        : {crystal_radius: 1.249, ionic_radius: 1.109}
      XII:
        ? ''
        : {crystal_radius: 1.41, ionic_radius: 1.27}
  Superconduction temperature: no data K
  Thermal conductivity: 17 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: 2330 m s<sup>-1</sup>
  Vickers hardness: 343 MN m<sup>-2</sup>
  X: 1.14
  Youngs modulus: 41 GPa
Ne:
  Atomic mass: 20.1797
  Atomic no: 10
  Atomic orbitals: {1s: -30.305855, 2p: -0.498034, 2s: -1.322809}
  Atomic radius: no data
  Atomic radius calculated: 0.38
  Boiling point: 27.07 K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: no data GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Critical temperature: 44.4 K
  Density of solid: no data kg m<sup>-3</sup>
  Electrical resistivity: no data 10<sup>-8</sup> &Omega; m
  Electronic structure: '[He].2s<sup>2</sup>.2p<sup>6</sup>'
  Liquid range: 2.51 K
  Max oxidation state: 0.0
  Melting point: 24.56 K
  Mendeleev no: 2
  Min oxidation state: 0.0
  Mineral hardness: no data
  Molar volume: 13.23 cm<sup>3</sup>
  Name: Neon
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: '1.000067'
  Rigidity modulus: no data GPa
  Superconduction temperature: no data K
  Thermal conductivity: 0.0491 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 1.54
  Velocity of sound: 936 m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  Youngs modulus: no data GPa
Ni:
  Atomic mass: 58.6934
  Atomic no: 28
  Atomic orbitals: {1s: -297.870824, 2p: -30.868027, 2s: -35.312112, 3d: -0.348699,
    3p: -2.594158, 3s: -3.950717, 4s: -0.210764}
  Atomic radius: 1.35
  Atomic radius calculated: 1.49
  Boiling point: 3186 K
  Brinell hardness: 700 MN m<sup>-2</sup>
  Bulk modulus: 180 GPa
  Coefficient of linear thermal expansion: 13.4 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [2]
  Critical temperature: no data K
  Density of solid: 8908 kg m<sup>-3</sup>
  Electrical resistivity: 7.2 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Ar].3d<sup>8</sup>.4s<sup>2</sup>'
  ICSD oxidation states: [1, 2, 3, 4]
  Ionic radii: {'3': 0.74}
  Ionic radii hs: {'3': 0.74}
  Ionic radii ls: {'2': 0.83, '3': 0.7, '4': 0.62}
  Liquid range: 1458 K
  Melting point: 1728 K
  Mendeleev no: 67
  Mineral hardness: '4.0'
  Molar volume: 6.59 cm<sup>3</sup>
  Name: Nickel
  Oxidation states: [-1, 1, 2, 3, 4]
  Poissons ratio: '0.31'
  Reflectivity: 72 %
  Refractive index: no data
  Rigidity modulus: 76 GPa
  Shannon radii:
    2:
      IV:
        ? ''
        : {crystal_radius: 0.69, ionic_radius: 0.55}
      IVSQ:
        ? ''
        : {crystal_radius: 0.63, ionic_radius: 0.49}
      V:
        ? ''
        : {crystal_radius: 0.77, ionic_radius: 0.63}
      VI:
        ? ''
        : {crystal_radius: 0.83, ionic_radius: 0.69}
    3:
      VI:
        High Spin: {crystal_radius: 0.74, ionic_radius: 0.6}
        Low Spin: {crystal_radius: 0.7, ionic_radius: 0.56}
    4:
      VI:
        Low Spin: {crystal_radius: 0.62, ionic_radius: 0.48}
  Superconduction temperature: no data K
  Thermal conductivity: 91 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 1.63
  Velocity of sound: 4970 m s<sup>-1</sup>
  Vickers hardness: 638 MN m<sup>-2</sup>
  X: 1.91
  Youngs modulus: 200 GPa
'No':
  Atomic mass: 259.0
  Atomic no: 102
  Atomic orbitals: no data
  Atomic radius: no data
  Atomic radius calculated: no data
  Boiling point: no data K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: no data GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [3]
  Critical temperature: no data K
  Density of solid: no data kg m<sup>-3</sup>
  Electrical resistivity: no data 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Rn].5f<sup>14</sup>.7s<sup>2</sup>'
  Liquid range: no data K
  Melting point: about 1100 K
  Mendeleev no: 35
  Mineral hardness: no data
  Molar volume: no data cm<sup>3</sup>
  Name: Nobelium
  Oxidation states: [2, 3]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: no data GPa
  Shannon radii:
    2:
      VI:
        ? ''
        : {crystal_radius: 1.24, ionic_radius: 1.1}
  Superconduction temperature: no data K
  Thermal conductivity: no data W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: no data m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 1.3
  Youngs modulus: no data GPa
Np:
  Atomic mass: 237.0
  Atomic no: 93
  Atomic orbitals: no data
  Atomic radius: 1.75
  Atomic radius calculated: no data
  Boiling point: 4273 K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: no data GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [5]
  Critical temperature: no data K
  Density of solid: 20450 kg m<sup>-3</sup>
  Electrical resistivity: 120 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Rn].5f<sup>4</sup>.6d<sup>1</sup>.7s<sup>2</sup>'
  Ionic radii: {'2': 1.24, '3': 1.15, '4': 1.01, '5': 0.89, '6': 0.86, '7': 0.85}
  Liquid range: 3363 K
  Melting point: 910 K
  Mendeleev no: 44
  Mineral hardness: no data
  Molar volume: 11.59 cm<sup>3</sup>
  Name: Neptunium
  Oxidation states: [3, 4, 5, 6, 7]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: no data GPa
  Shannon radii:
    2:
      VI:
        ? ''
        : {crystal_radius: 1.24, ionic_radius: 1.1}
    3:
      VI:
        ? ''
        : {crystal_radius: 1.15, ionic_radius: 1.01}
    4:
      VI:
        ? ''
        : {crystal_radius: 1.01, ionic_radius: 0.87}
      VIII:
        ? ''
        : {crystal_radius: 1.12, ionic_radius: 0.98}
    5:
      VI:
        ? ''
        : {crystal_radius: 0.89, ionic_radius: 0.75}
    6:
      VI:
        ? ''
        : {crystal_radius: 0.86, ionic_radius: 0.72}
    7:
      VI:
        ? ''
        : {crystal_radius: 0.85, ionic_radius: 0.71}
  Superconduction temperature: no data K
  Thermal conductivity: 6 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: no data m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 1.36
  Youngs modulus: no data GPa
O:
  Atomic mass: 15.9994
  Atomic no: 8
  Atomic orbitals: {1s: -18.758245, 2p: -0.338381, 2s: -0.871362}
  Atomic radius: 0.6
  Atomic radius calculated: 0.48
  Boiling point: 90.2 K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: no data GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [-2]
  Critical temperature: 154.6 K
  Density of solid: no data kg m<sup>-3</sup>
  Electrical resistivity: no data 10<sup>-8</sup> &Omega; m
  Electronic structure: '[He].2s<sup>2</sup>.2p<sup>4</sup>'
  ICSD oxidation states: [-2]
  Ionic radii: {'-2': 1.26}
  Liquid range: 35.4 K
  Melting point: 54.8 K
  Mendeleev no: 101
  Mineral hardness: no data
  Molar volume: 17.36 cm<sup>3</sup>
  Name: Oxygen
  Oxidation states: [-2, -1, 1, 2]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: 1.000271 (gas; liquid 1.221)(no units)
  Rigidity modulus: no data GPa
  Shannon radii:
    -2:
      II:
        ? ''
        : {crystal_radius: 1.21, ionic_radius: 1.35}
      III:
        ? ''
        : {crystal_radius: 1.22, ionic_radius: 1.36}
      IV:
        ? ''
        : {crystal_radius: 1.24, ionic_radius: 1.38}
      VI:
        ? ''
        : {crystal_radius: 1.26, ionic_radius: 1.4}
      VIII:
        ? ''
        : {crystal_radius: 1.28, ionic_radius: 1.42}
  Superconduction temperature: no data K
  Thermal conductivity: 0.02658 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 1.52
  Velocity of sound: 317.5 m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 3.44
  Youngs modulus: no data GPa
Os:
  Atomic mass: 190.23
  Atomic no: 76
  Atomic orbitals: {1s: -2475.238617, 2p: -393.15408, 2s: -409.522396, 3d: -72.497183,
    3p: -86.837047, 3s: -94.501324, 4d: -10.176082, 4f: -2.321175, 4p: -16.119671,
    4s: -19.362527, 5d: -0.296791, 5p: -1.757404, 5s: -2.738293, 6s: -0.191489}
  Atomic radius: 1.3
  Atomic radius calculated: 1.85
  Boiling point: 5285 K
  Brinell hardness: 3920 MN m<sup>-2</sup>
  Bulk modulus: no data GPa
  Coefficient of linear thermal expansion: 5.1 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [4]
  Critical temperature: no data K
  Density of solid: 22610 kg m<sup>-3</sup>
  Electrical resistivity: 8.1 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Xe].4f<sup>14</sup>.5d<sup>6</sup>.6s<sup>2</sup>'
  Ionic radii: {'4': 0.77, '5': 0.715, '6': 0.685, '7': 0.665, '8': 0.53}
  Liquid range: 1979 K
  Melting point: 3306 K
  Mendeleev no: 63
  Mineral hardness: '7.0'
  Molar volume: 8.42 cm<sup>3</sup>
  Name: Osmium
  Oxidation states: [-2, -1, 1, 2, 3, 4, 5, 6, 7, 8]
  Poissons ratio: '0.25'
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 222 GPa
  Shannon radii:
    4:
      VI:
        ? ''
        : {crystal_radius: 0.77, ionic_radius: 0.63}
    5:
      VI:
        ? ''
        : {crystal_radius: 0.715, ionic_radius: 0.575}
    6:
      V:
        ? ''
        : {crystal_radius: 0.63, ionic_radius: 0.49}
      VI:
        ? ''
        : {crystal_radius: 0.685, ionic_radius: 0.545}
    7:
      VI:
        ? ''
        : {crystal_radius: 0.665, ionic_radius: 0.525}
    8:
      IV:
        ? ''
        : {crystal_radius: 0.53, ionic_radius: 0.39}
  Superconduction temperature: 0.66 K
  Thermal conductivity: 88 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: 4940 m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 2.2
  Youngs modulus: no data GPa
P:
  Atomic mass: 30.973762
  Atomic no: 15
  Atomic orbitals: {1s: -76.061897, 2p: -4.576617, 2s: -6.329346, 3p: -0.20608, 3s: -0.512364}
  Atomic radius: 1.0
  Atomic radius calculated: 0.98
  Boiling point: 550 K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: 11 GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [-3, 3, 5]
  Critical temperature: 994 K
  Density of solid: 1823 kg m<sup>-3</sup>
  Electrical resistivity: about 10 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Ne].3s<sup>2</sup>.3p<sup>3</sup>'
  ICSD oxidation states: [3, 4, 5, -2, -3, -1]
  Ionic radii: {'3': 0.58, '5': 0.52}
  Liquid range: 232.7 K
  Melting point: (white P) 317.3 K
  Mendeleev no: 90
  Mineral hardness: no data
  Molar volume: 17.02 cm<sup>3</sup>
  Name: Phosphorus
  Oxidation states: [-3, -2, -1, 1, 2, 3, 4, 5]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: '1.001212'
  Rigidity modulus: no data GPa
  Shannon radii:
    3:
      VI:
        ? ''
        : {crystal_radius: 0.58, ionic_radius: 0.44}
    5:
      IV:
        ? ''
        : {crystal_radius: 0.31, ionic_radius: 0.17}
      V:
        ? ''
        : {crystal_radius: 0.43, ionic_radius: 0.29}
      VI:
        ? ''
        : {crystal_radius: 0.52, ionic_radius: 0.38}
  Superconduction temperature: no data K
  Thermal conductivity: 0.236 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 1.8
  Velocity of sound: no data m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 2.19
  Youngs modulus: no data GPa
Pa:
  Atomic mass: 231.03588
  Atomic no: 91
  Atomic orbitals: {1s: -3606.333629, 2p: -603.470278, 2s: -623.870431, 3d: -127.781168,
    3p: -146.485678, 3s: -156.466742, 4d: -25.933121, 4f: -14.105747, 4p: -34.48293,
    4s: -39.064507, 5d: -3.659928, 5f: -0.316813, 5p: -6.709821, 5s: -8.463463, 6d: -0.142481,
    6p: -0.799756, 6s: -1.287232, 7s: -0.129653}
  Atomic radius: 1.8
  Atomic radius calculated: no data
  Boiling point: no data K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: no data GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [5]
  Critical temperature: no data K
  Density of solid: 15370 kg m<sup>-3</sup>
  Electrical resistivity: 18 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Rn].5f<sup>2</sup>.6d<sup>1</sup>.7s<sup>2</sup>'
  Ionic radii: {'3': 1.16, '4': 1.04, '5': 0.92}
  Liquid range: no data K
  Melting point: 1841 K
  Mendeleev no: 46
  Mineral hardness: no data
  Molar volume: 15.18 cm<sup>3</sup>
  Name: Protactinium
  Oxidation states: [3, 4, 5]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: no data GPa
  Shannon radii:
    3:
      VI:
        ? ''
        : {crystal_radius: 1.18, ionic_radius: 1.04}
    4:
      VI:
        ? ''
        : {crystal_radius: 1.04, ionic_radius: 0.9}
      VIII:
        ? ''
        : {crystal_radius: 1.15, ionic_radius: 1.01}
    5:
      IX:
        ? ''
        : {crystal_radius: 1.09, ionic_radius: 0.95}
      VI:
        ? ''
        : {crystal_radius: 0.92, ionic_radius: 0.78}
      VIII:
        ? ''
        : {crystal_radius: 1.05, ionic_radius: 0.91}
  Superconduction temperature: 1.4 K
  Thermal conductivity: 47 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: no data m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 1.5
  Youngs modulus: no data GPa
Pb:
  Atomic mass: 207.2
  Atomic no: 82
  Atomic orbitals: {1s: -2901.078061, 2p: -470.877785, 2s: -488.843335, 3d: -91.889924,
    3p: -107.950391, 3s: -116.526852, 4d: -15.030026, 4f: -5.592532, 4p: -21.990564,
    4s: -25.75333, 5d: -0.902393, 5p: -2.941657, 5s: -4.206797, 6p: -0.141831, 6s: -0.357187}
  Atomic radius: 1.8
  Atomic radius calculated: 1.54
  Boiling point: 2022 K
  Brinell hardness: 38.3 MN m<sup>-2</sup>
  Bulk modulus: 46 GPa
  Coefficient of linear thermal expansion: 28.9 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [2, 4]
  Critical temperature: no data K
  Density of solid: 11340 kg m<sup>-3</sup>
  Electrical resistivity: 21 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Xe].4f<sup>14</sup>.5d<sup>10</sup>.6s<sup>2</sup>.6p<sup>2</sup>'
  ICSD oxidation states: [2, 4]
  Ionic radii: {'2': 1.33, '4': 0.915}
  Liquid range: 1421.39 K
  Melting point: 600.61 K
  Mendeleev no: 82
  Mineral hardness: '1.5'
  Molar volume: 18.26 cm<sup>3</sup>
  Name: Lead
  Oxidation states: [-4, 2, 4]
  Poissons ratio: '0.44'
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 5.6 GPa
  Shannon radii:
    2:
      IVPY:
        ? ''
        : {crystal_radius: 1.12, ionic_radius: 0.98}
      IX:
        ? ''
        : {crystal_radius: 1.49, ionic_radius: 1.35}
      VI:
        ? ''
        : {crystal_radius: 1.33, ionic_radius: 1.19}
      VII:
        ? ''
        : {crystal_radius: 1.37, ionic_radius: 1.23}
      VIII:
        ? ''
        : {crystal_radius: 1.43, ionic_radius: 1.29}
      X:
        ? ''
        : {crystal_radius: 1.54, ionic_radius: 1.4}
      XI:
        ? ''
        : {crystal_radius: 1.59, ionic_radius: 1.45}
      XII:
        ? ''
        : {crystal_radius: 1.63, ionic_radius: 1.49}
    4:
      IV:
        ? ''
        : {crystal_radius: 0.79, ionic_radius: 0.65}
      V:
        ? ''
        : {crystal_radius: 0.87, ionic_radius: 0.73}
      VI:
        ? ''
        : {crystal_radius: 0.915, ionic_radius: 0.775}
      VIII:
        ? ''
        : {crystal_radius: 1.08, ionic_radius: 0.94}
  Superconduction temperature: 7.2 K
  Thermal conductivity: 35 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 2.02
  Velocity of sound: 1260 m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 2.33
  Youngs modulus: 16 GPa
Pd:
  Atomic mass: 106.42
  Atomic no: 46
  Atomic orbitals: {1s: -860.134909, 2p: -114.408286, 2s: -123.105078, 3d: -12.132197,
    3p: -18.580798, 3s: -22.060898, 4d: -0.160771, 4p: -1.815215, 4s: -2.889173}
  Atomic radius: 1.4
  Atomic radius calculated: 1.69
  Boiling point: 3236 K
  Brinell hardness: 37.3 MN m<sup>-2</sup>
  Bulk modulus: 180 GPa
  Coefficient of linear thermal expansion: 11.8 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [2, 4]
  Critical temperature: no data K
  Density of solid: 12023 kg m<sup>-3</sup>
  Electrical resistivity: 10.8 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Kr].4d<sup>10</sup>'
  ICSD oxidation states: [2, 4]
  Ionic radii: {'1': 0.73, '2': 1.0, '3': 0.9, '4': 0.755}
  Liquid range: 1407.95 K
  Melting point: 1828.05 K
  Mendeleev no: 69
  Mineral hardness: '4.75'
  Molar volume: 8.56 cm<sup>3</sup>
  Name: Palladium
  Oxidation states: [2, 4]
  Poissons ratio: '0.39'
  Reflectivity: 72 %
  Refractive index: no data
  Rigidity modulus: 44 GPa
  Shannon radii:
    1:
      II:
        ? ''
        : {crystal_radius: 0.73, ionic_radius: 0.59}
    2:
      IVSQ:
        ? ''
        : {crystal_radius: 0.78, ionic_radius: 0.64}
      VI:
        ? ''
        : {crystal_radius: 1.0, ionic_radius: 0.86}
    3:
      VI:
        ? ''
        : {crystal_radius: 0.9, ionic_radius: 0.76}
    4:
      VI:
        ? ''
        : {crystal_radius: 0.755, ionic_radius: 0.615}
  Superconduction temperature: no data K
  Thermal conductivity: 72 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 1.63
  Velocity of sound: 3070 m s<sup>-1</sup>
  Vickers hardness: 461 MN m<sup>-2</sup>
  X: 2.2
  Youngs modulus: 121 GPa
Pm:
  Atomic mass: 145.0
  Atomic no: 61
  Atomic orbitals: {1s: -1562.980284, 2p: -233.455114, 2s: -245.970548, 3d: -37.625433,
    3p: -47.921132, 3s: -53.429311, 4d: -4.596822, 4f: -0.200159, 4p: -8.320495, 4s: -10.422756,
    5p: -0.817702, 5s: -1.372265, 6s: -0.127053}
  Atomic radius: 1.85
  Atomic radius calculated: 2.05
  Boiling point: 3273 K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: 33 GPa
  Coefficient of linear thermal expansion: 11 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [3]
  Critical temperature: no data K
  Density of solid: 7264 kg m<sup>-3</sup>
  Electrical resistivity: about 75 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Xe].4f<sup>5</sup>.6s<sup>2</sup>'
  Ionic radii: {'3': 1.11}
  Liquid range: 1900 K
  Melting point: 1373 K
  Mendeleev no: 29
  Mineral hardness: no data
  Molar volume: 20.23 cm<sup>3</sup>
  Name: Promethium
  Oxidation states: [3]
  Poissons ratio: '0.28'
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 18 GPa
  Shannon radii:
    3:
      IX:
        ? ''
        : {crystal_radius: 1.284, ionic_radius: 1.144}
      VI:
        ? ''
        : {crystal_radius: 1.11, ionic_radius: 0.97}
      VIII:
        ? ''
        : {crystal_radius: 1.233, ionic_radius: 1.093}
  Superconduction temperature: no data K
  Thermal conductivity: 15 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: no data m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 1.13
  Youngs modulus: 46 GPa
Po:
  Atomic mass: 210.0
  Atomic no: 84
  Atomic orbitals: {1s: -3050.988417, 2p: -498.77192, 2s: -517.275843, 3d: -99.256068,
    3p: -115.898384, 3s: -124.783683, 4d: -17.173307, 4f: -7.206499, 4p: -24.481337,
    4s: -28.42254, 5d: -1.386458, 5p: -3.655382, 5s: -5.027447, 6p: -0.217889, 6s: -0.493528}
  Atomic radius: 1.9
  Atomic radius calculated: 1.35
  Boiling point: 1235 K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: no data GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [-2, 2, 4]
  Critical temperature: no data K
  Density of solid: 9196 kg m<sup>-3</sup>
  Electrical resistivity: 40 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Xe].4f<sup>14</sup>.5d<sup>10</sup>.6s<sup>2</sup>.6p<sup>4</sup>'
  Ionic radii: {'4': 1.08, '6': 0.81}
  Liquid range: 708 K
  Melting point: 527 K
  Mendeleev no: 91
  Mineral hardness: no data
  Molar volume: 22.97 cm<sup>3</sup>
  Name: Polonium
  Oxidation states: [-2, 2, 4, 6]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: no data GPa
  Shannon radii:
    4:
      VI:
        ? ''
        : {crystal_radius: 1.08, ionic_radius: 0.94}
      VIII:
        ? ''
        : {crystal_radius: 1.22, ionic_radius: 1.08}
    6:
      VI:
        ? ''
        : {crystal_radius: 0.81, ionic_radius: 0.67}
  Superconduction temperature: no data K
  Thermal conductivity: 20 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 1.97
  Velocity of sound: no data m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 2.0
  Youngs modulus: no data GPa
Pr:
  Atomic mass: 140.90765
  Atomic no: 59
  Atomic orbitals: {1s: -1457.338067, 2p: -215.418313, 2s: -227.426363, 3d: -33.913996,
    3p: -43.692548, 3s: -48.924994, 4d: -4.154228, 4f: -0.155138, 4p: -7.613108, 4s: -9.577447,
    5p: -0.778046, 5s: -1.296106, 6s: -0.124465}
  Atomic radius: 1.85
  Atomic radius calculated: 2.47
  Boiling point: 3563 K
  Brinell hardness: 481 MN m<sup>-2</sup>
  Bulk modulus: 29 GPa
  Coefficient of linear thermal expansion: 6.7 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [3]
  Critical temperature: no data K
  Density of solid: 6640 kg m<sup>-3</sup>
  Electrical resistivity: 70 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Xe].4f<sup>3</sup>.6s<sup>2</sup>'
  ICSD oxidation states: [3, 4]
  Ionic radii: {'3': 1.13, '4': 0.99}
  Liquid range: 2355 K
  Melting point: 1208 K
  Mendeleev no: 31
  Mineral hardness: no data
  Molar volume: 20.80 cm<sup>3</sup>
  Name: Praseodymium
  Oxidation states: [2, 3, 4]
  Poissons ratio: '0.28'
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 15 GPa
  Shannon radii:
    3:
      IX:
        ? ''
        : {crystal_radius: 1.319, ionic_radius: 1.179}
      VI:
        ? ''
        : {crystal_radius: 1.13, ionic_radius: 0.99}
      VIII:
        ? ''
        : {crystal_radius: 1.266, ionic_radius: 1.126}
    4:
      VI:
        ? ''
        : {crystal_radius: 0.99, ionic_radius: 0.85}
      VIII:
        ? ''
        : {crystal_radius: 1.1, ionic_radius: 0.96}
  Superconduction temperature: no data K
  Thermal conductivity: 13 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: 2280 m s<sup>-1</sup>
  Vickers hardness: 400 MN m<sup>-2</sup>
  X: 1.13
  Youngs modulus: 37 GPa
Pt:
  Atomic mass: 195.084
  Atomic no: 78
  Atomic orbitals: {1s: -2613.096532, 2p: -417.96053, 2s: -434.858003, 3d: -78.400271,
    3p: -93.309108, 3s: -101.274869, 4d: -11.419476, 4f: -3.038049, 4p: -17.697297,
    4s: -21.110651, 5d: -0.273634, 5p: -1.884256, 5s: -2.950526, 6s: -0.161308}
  Atomic radius: 1.35
  Atomic radius calculated: 1.77
  Boiling point: 4098 K
  Brinell hardness: 392 MN m<sup>-2</sup>
  Bulk modulus: 230 GPa
  Coefficient of linear thermal expansion: 8.8 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [2, 4]
  Critical temperature: no data K
  Density of solid: 21090 kg m<sup>-3</sup>
  Electrical resistivity: 10.6 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Xe].4f<sup>14</sup>.5d<sup>9</sup>.6s<sup>1</sup>'
  Ionic radii: {'2': 0.94, '4': 0.765, '5': 0.71}
  Liquid range: 2056.6 K
  Melting point: 2041.4 K
  Mendeleev no: 68
  Mineral hardness: '3.5'
  Molar volume: 9.09 cm<sup>3</sup>
  Name: Platinum
  Oxidation states: [-2, 2, 4, 5, 6]
  Poissons ratio: '0.38'
  Reflectivity: 73 %
  Refractive index: no data
  Rigidity modulus: 61 GPa
  Shannon radii:
    2:
      IVSQ:
        ? ''
        : {crystal_radius: 0.74, ionic_radius: 0.6}
      VI:
        ? ''
        : {crystal_radius: 0.94, ionic_radius: 0.8}
    4:
      VI:
        ? ''
        : {crystal_radius: 0.765, ionic_radius: 0.625}
    5:
      VI:
        ? ''
        : {crystal_radius: 0.71, ionic_radius: 0.57}
  Superconduction temperature: no data K
  Thermal conductivity: 72 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 1.75
  Velocity of sound: 2680 m s<sup>-1</sup>
  Vickers hardness: 549 MN m<sup>-2</sup>
  X: 2.28
  Youngs modulus: 168 GPa
Pu:
  Atomic mass: 244.0
  Atomic no: 94
  Atomic orbitals: no data
  Atomic radius: 1.75
  Atomic radius calculated: no data
  Boiling point: 3503 K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: no data GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [4]
  Critical temperature: no data K
  Density of solid: 19816 kg m<sup>-3</sup>
  Electrical resistivity: 150 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Rn].5f<sup>6</sup>.7s<sup>2</sup>'
  Ionic radii: {'3': 1.14, '4': 1.0, '5': 0.88, '6': 0.85}
  Liquid range: 2590.5 K
  Melting point: 912.5 K
  Mendeleev no: 43
  Mineral hardness: no data
  Molar volume: 12.29 cm<sup>3</sup>
  Name: Plutonium
  Oxidation states: [3, 4, 5, 6, 7]
  Poissons ratio: '0.21'
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 43 GPa
  Shannon radii:
    3:
      VI:
        ? ''
        : {crystal_radius: 1.14, ionic_radius: 1.0}
    4:
      VI:
        ? ''
        : {crystal_radius: 1.0, ionic_radius: 0.86}
      VIII:
        ? ''
        : {crystal_radius: 1.1, ionic_radius: 0.96}
    5:
      VI:
        ? ''
        : {crystal_radius: 0.88, ionic_radius: 0.74}
    6:
      VI:
        ? ''
        : {crystal_radius: 0.85, ionic_radius: 0.71}
  Superconduction temperature: no data K
  Thermal conductivity: 6 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: 2260 m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 1.28
  Youngs modulus: 96 GPa
Ra:
  Atomic mass: 226.0
  Atomic no: 88
  Atomic orbitals: {1s: -3362.736563, 2p: -557.513214, 2s: -577.101208, 3d: -115.306476,
    3p: -133.12325, 3s: -142.632426, 4d: -22.208125, 4f: -11.181066, 4p: -30.221208,
    4s: -34.525628, 5d: -2.819853, 5p: -5.547203, 5s: -7.139137, 6p: -0.634674, 6s: -1.05135,
    7s: -0.113732}
  Atomic radius: 2.15
  Atomic radius calculated: no data
  Boiling point: 2010 K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: no data GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [2]
  Critical temperature: no data K
  Density of solid: 5000 kg m<sup>-3</sup>
  Electrical resistivity: 100 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Rn].7s<sup>2</sup>'
  Ionic radii: {'2': 1.62}
  Liquid range: 1037 K
  Melting point: 973 K
  Mendeleev no: 13
  Mineral hardness: no data
  Molar volume: 41.09 cm<sup>3</sup>
  Name: Radium
  Oxidation states: [2]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: no data GPa
  Shannon radii:
    2:
      VIII:
        ? ''
        : {crystal_radius: 1.62, ionic_radius: 1.48}
      XII:
        ? ''
        : {crystal_radius: 1.84, ionic_radius: 1.7}
  Superconduction temperature: no data K
  Thermal conductivity: 19 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 2.83
  Velocity of sound: no data m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 0.9
  Youngs modulus: no data GPa
Rb:
  Atomic mass: 85.4678
  Atomic no: 37
  Atomic orbitals: {1s: -540.957115, 2p: -64.784678, 2s: -71.291202, 3d: -3.915508,
    3p: -8.165416, 3s: -10.513861, 4p: -0.59217, 4s: -1.135051, 5s: -0.085375}
  Atomic radius: 2.35
  Atomic radius calculated: 2.65
  Boiling point: 961 K
  Brinell hardness: 0.216 MN m<sup>-2</sup>
  Bulk modulus: 2.5 GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [1]
  Critical temperature: 2093 K
  Density of solid: 1532 kg m<sup>-3</sup>
  Electrical resistivity: 13.3 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Kr].5s<sup>1</sup>'
  ICSD oxidation states: [1]
  Ionic radii: {'1': 1.66}
  Liquid range: 648.54 K
  Melting point: 312.46 K
  Mendeleev no: 9
  Mineral hardness: '0.3'
  Molar volume: 55.76 cm<sup>3</sup>
  Name: Rubidium
  Oxidation states: [1]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: no data GPa
  Shannon radii:
    1:
      IX:
        ? ''
        : {crystal_radius: 1.77, ionic_radius: 1.63}
      VI:
        ? ''
        : {crystal_radius: 1.66, ionic_radius: 1.52}
      VII:
        ? ''
        : {crystal_radius: 1.7, ionic_radius: 1.56}
      VIII:
        ? ''
        : {crystal_radius: 1.75, ionic_radius: 1.61}
      X:
        ? ''
        : {crystal_radius: 1.8, ionic_radius: 1.66}
      XI:
        ? ''
        : {crystal_radius: 1.83, ionic_radius: 1.69}
      XII:
        ? ''
        : {crystal_radius: 1.86, ionic_radius: 1.72}
      XIV:
        ? ''
        : {crystal_radius: 1.97, ionic_radius: 1.83}
  Superconduction temperature: no data K
  Thermal conductivity: 58 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 3.03
  Velocity of sound: 1300 m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 0.82
  Youngs modulus: 2.4 GPa
Re:
  Atomic mass: 186.207
  Atomic no: 75
  Atomic orbitals: {1s: -2407.665572, 2p: -380.982869, 2s: -397.087707, 3d: -69.57676,
    3p: -83.634578, 3s: -91.149193, 4d: -9.516816, 4f: -1.92508, 4p: -15.295495, 4s: -18.454325,
    5d: -0.258639, 5p: -1.631227, 5s: -2.567348, 6s: -0.186859}
  Atomic radius: 1.35
  Atomic radius calculated: 1.88
  Boiling point: 5869 K
  Brinell hardness: 1320 MN m<sup>-2</sup>
  Bulk modulus: 370 GPa
  Coefficient of linear thermal expansion: 6.2 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [4]
  Critical temperature: no data K
  Density of solid: 21020 kg m<sup>-3</sup>
  Electrical resistivity: 18 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Xe].4f<sup>14</sup>.5d<sup>5</sup>.6s<sup>2</sup>'
  ICSD oxidation states: [3, 4, 5, 6, 7]
  Ionic radii: {'4': 0.77, '5': 0.72, '6': 0.69, '7': 0.67}
  Liquid range: 2410 K
  Melting point: 3459 K
  Mendeleev no: 58
  Mineral hardness: '7.0'
  Molar volume: 8.86 cm<sup>3</sup>
  Name: Rhenium
  Oxidation states: [-3, -1, 1, 2, 3, 4, 5, 6, 7]
  Poissons ratio: '0.30'
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 178 GPa
  Shannon radii:
    4:
      VI:
        ? ''
        : {crystal_radius: 0.77, ionic_radius: 0.63}
    5:
      VI:
        ? ''
        : {crystal_radius: 0.72, ionic_radius: 0.58}
    6:
      VI:
        ? ''
        : {crystal_radius: 0.69, ionic_radius: 0.55}
    7:
      IV:
        ? ''
        : {crystal_radius: 0.52, ionic_radius: 0.38}
      VI:
        ? ''
        : {crystal_radius: 0.67, ionic_radius: 0.53}
  Superconduction temperature: 1.70 K
  Thermal conductivity: 48 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: 4700 m s<sup>-1</sup>
  Vickers hardness: 2450 MN m<sup>-2</sup>
  X: 1.9
  Youngs modulus: 463 GPa
Rh:
  Atomic mass: 102.9055
  Atomic no: 45
  Atomic orbitals: {1s: -821.136773, 2p: -108.357665, 2s: -116.80695, 3d: -11.21725,
    3p: -17.415299, 3s: -20.765603, 4d: -0.239422, 4p: -1.806456, 4s: -2.825505, 5s: -0.154624}
  Atomic radius: 1.35
  Atomic radius calculated: 1.73
  Boiling point: 3968 K
  Brinell hardness: 1100 MN m<sup>-2</sup>
  Bulk modulus: 380 GPa
  Coefficient of linear thermal expansion: 8.2 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [3]
  Critical temperature: no data K
  Density of solid: 12450 kg m<sup>-3</sup>
  Electrical resistivity: 4.3 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Kr].4d<sup>8</sup>.5s<sup>1</sup>'
  ICSD oxidation states: [3, 4]
  Ionic radii: {'3': 0.805, '4': 0.74, '5': 0.69}
  Liquid range: 1731 K
  Melting point: 2237 K
  Mendeleev no: 65
  Mineral hardness: '6.0'
  Molar volume: 8.28 cm<sup>3</sup>
  Name: Rhodium
  Oxidation states: [-1, 1, 2, 3, 4, 5, 6]
  Poissons ratio: '0.26'
  Reflectivity: 84 %
  Refractive index: no data
  Rigidity modulus: 150 GPa
  Shannon radii:
    3:
      VI:
        ? ''
        : {crystal_radius: 0.805, ionic_radius: 0.665}
    4:
      VI:
        ? ''
        : {crystal_radius: 0.74, ionic_radius: 0.6}
    5:
      VI:
        ? ''
        : {crystal_radius: 0.69, ionic_radius: 0.55}
  Superconduction temperature: no data K
  Thermal conductivity: 150 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: 4700 m s<sup>-1</sup>
  Vickers hardness: 1246 MN m<sup>-2</sup>
  X: 2.28
  Youngs modulus: 275 GPa
Rn:
  Atomic mass: 220.0
  Atomic no: 86
  Atomic orbitals: {1s: -3204.756288, 2p: -527.533025, 2s: -546.57796, 3d: -106.945006,
    3p: -124.172862, 3s: -133.369144, 4d: -19.449994, 4f: -8.953318, 4p: -27.108985,
    4s: -31.230804, 5d: -1.911329, 5p: -4.408702, 5s: -5.889683, 6p: -0.29318, 6s: -0.62657}
  Atomic radius: no data
  Atomic radius calculated: 1.2
  Boiling point: 211.3 K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: no data GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Critical temperature: 377 K
  Density of solid: no data kg m<sup>-3</sup>
  Electrical resistivity: no data 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Xe].4f<sup>14</sup>.5d<sup>10</sup>.6s<sup>2</sup>.6p<sup>6</sup>'
  Liquid range: 9.3 K
  Max oxidation state: 0.0
  Melting point: 202 K
  Mendeleev no: 6
  Min oxidation state: 0.0
  Mineral hardness: no data
  Molar volume: 50.50 cm<sup>3</sup>
  Name: Radon
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: no data GPa
  Superconduction temperature: no data K
  Thermal conductivity: 0.00361 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 2.2
  Velocity of sound: no data m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 2.2
  Youngs modulus: no data GPa
Ru:
  Atomic mass: 101.07
  Atomic no: 44
  Atomic orbitals: {1s: -782.918621, 2p: -102.333649, 2s: -110.536054, 3d: -10.195668,
    3p: -16.145217, 3s: -19.366692, 4d: -0.210375, 4p: -1.667549, 4s: -2.628363, 5s: -0.152834}
  Atomic radius: 1.3
  Atomic radius calculated: 1.78
  Boiling point: 4423 K
  Brinell hardness: 2160 MN m<sup>-2</sup>
  Bulk modulus: 220 GPa
  Coefficient of linear thermal expansion: 6.4 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [3, 4]
  Critical temperature: no data K
  Density of solid: 12370 kg m<sup>-3</sup>
  Electrical resistivity: 7.1 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Kr].4d<sup>7</sup>.5s<sup>1</sup>'
  ICSD oxidation states: [2, 3, 4, 5, 6]
  Ionic radii: {'3': 0.82, '4': 0.76, '5': 0.705, '7': 0.52, '8': 0.5}
  Liquid range: 1816 K
  Melting point: 2607 K
  Mendeleev no: 62
  Mineral hardness: '6.5'
  Molar volume: 8.17 cm<sup>3</sup>
  Name: Ruthenium
  Oxidation states: [-2, 1, 2, 3, 4, 5, 6, 7, 8]
  Poissons ratio: '0.30'
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 173 GPa
  Shannon radii:
    3:
      VI:
        ? ''
        : {crystal_radius: 0.82, ionic_radius: 0.68}
    4:
      VI:
        ? ''
        : {crystal_radius: 0.76, ionic_radius: 0.62}
    5:
      VI:
        ? ''
        : {crystal_radius: 0.705, ionic_radius: 0.565}
    7:
      IV:
        ? ''
        : {crystal_radius: 0.52, ionic_radius: 0.38}
    8:
      IV:
        ? ''
        : {crystal_radius: 0.5, ionic_radius: 0.36}
  Superconduction temperature: 0.49 K
  Thermal conductivity: 120 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: 5970 m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 2.2
  Youngs modulus: 447 GPa
S:
  Atomic mass: 32.065
  Atomic no: 16
  Atomic orbitals: {1s: -87.789937, 2p: -5.751257, 2s: -7.69994, 3p: -0.261676, 3s: -0.630912}
  Atomic radius: 1.0
  Atomic radius calculated: 0.88
  Boiling point: 717.87 K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: 7.7 GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [-2, 2, 4, 6]
  Critical temperature: 1314 K
  Density of solid: 1960 kg m<sup>-3</sup>
  Electrical resistivity: '&gt; 10<sup>23</sup>10<sup>-8</sup> &Omega; m'
  Electronic structure: '[Ne].3s<sup>2</sup>.3p<sup>4</sup>'
  ICSD oxidation states: [-1, 2, 4, -2, 6]
  Ionic radii: {'-2': 1.7, '4': 0.51, '6': 0.43}
  Liquid range: 329.51 K
  Melting point: 388.36 K
  Mendeleev no: 94
  Mineral hardness: '2.0'
  Molar volume: 15.53 cm<sup>3</sup>
  Name: Sulfur
  Oxidation states: [-2, -1, 1, 2, 3, 4, 5, 6]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: '1.001111'
  Rigidity modulus: no data GPa
  Shannon radii:
    -2:
      VI:
        ? ''
        : {crystal_radius: 1.7, ionic_radius: 1.84}
    4:
      VI:
        ? ''
        : {crystal_radius: 0.51, ionic_radius: 0.37}
    6:
      IV:
        ? ''
        : {crystal_radius: 0.26, ionic_radius: 0.12}
      VI:
        ? ''
        : {crystal_radius: 0.43, ionic_radius: 0.29}
  Superconduction temperature: no data K
  Thermal conductivity: 0.205 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 1.8
  Velocity of sound: no data m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 2.58
  Youngs modulus: no data GPa
Sb:
  Atomic mass: 121.76
  Atomic no: 51
  Atomic orbitals: {1s: -1070.823495, 2p: -149.214271, 2s: -159.171745, 3d: -19.239895,
    3p: -26.956184, 3s: -31.098242, 4d: -1.297338, 4p: -3.646579, 4s: -5.04964, 5p: -0.185623,
    5s: -0.445605}
  Atomic radius: 1.45
  Atomic radius calculated: 1.33
  Boiling point: 1860 K
  Brinell hardness: 294 MN m<sup>-2</sup>
  Bulk modulus: 42 GPa
  Coefficient of linear thermal expansion: 11 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [-3, 3, 5]
  Critical temperature: no data K
  Density of solid: 6697 kg m<sup>-3</sup>
  Electrical resistivity: 40 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Kr].4d<sup>10</sup>.5s<sup>2</sup>.5p<sup>3</sup>'
  ICSD oxidation states: [-2, 3, 5, -1, -3]
  Ionic radii: {'3': 0.9, '5': 0.76}
  Liquid range: 956.22 K
  Melting point: 903.78 K
  Mendeleev no: 88
  Mineral hardness: '3.0'
  Molar volume: 18.19 cm<sup>3</sup>
  Name: Antimony
  Oxidation states: [-3, 3, 5]
  Poissons ratio: no data
  Reflectivity: 55 %
  Refractive index: no data
  Rigidity modulus: 20 GPa
  Shannon radii:
    3:
      IVPY:
        ? ''
        : {crystal_radius: 0.9, ionic_radius: 0.76}
      V:
        ? ''
        : {crystal_radius: 0.94, ionic_radius: 0.8}
      VI:
        ? ''
        : {crystal_radius: 0.9, ionic_radius: 0.76}
    5:
      VI:
        ? ''
        : {crystal_radius: 0.74, ionic_radius: 0.6}
  Superconduction temperature: no data K
  Thermal conductivity: 24 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 2.06
  Velocity of sound: 3420 m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 2.05
  Youngs modulus: 55 GPa
Sc:
  Atomic mass: 44.955912
  Atomic no: 21
  Atomic orbitals: {1s: -160.184109, 2p: -14.240006, 2s: -17.206464, 3d: -0.13108,
    3p: -1.233165, 3s: -1.988378, 4s: -0.156478}
  Atomic radius: 1.6
  Atomic radius calculated: 1.84
  Boiling point: 3103 K
  Brinell hardness: 750 MN m<sup>-2</sup>
  Bulk modulus: 57 GPa
  Coefficient of linear thermal expansion: 10.2 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [3]
  Critical temperature: no data K
  Density of solid: 2985 kg m<sup>-3</sup>
  Electrical resistivity: about 55 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Ar].3d<sup>1</sup>.4s<sup>2</sup>'
  ICSD oxidation states: [2, 3]
  Ionic radii: {'3': 0.885}
  Liquid range: 1289 K
  Melting point: 1814 K
  Mendeleev no: 19
  Mineral hardness: no data
  Molar volume: 15.00 cm<sup>3</sup>
  Name: Scandium
  Oxidation states: [1, 2, 3]
  Poissons ratio: '0.28'
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 29 GPa
  Shannon radii:
    3:
      VI:
        ? ''
        : {crystal_radius: 0.885, ionic_radius: 0.745}
      VIII:
        ? ''
        : {crystal_radius: 1.01, ionic_radius: 0.87}
  Superconduction temperature: 0.05  (under pressure)K
  Thermal conductivity: 16 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 2.11
  Velocity of sound: no data m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 1.36
  Youngs modulus: 74 GPa
Se:
  Atomic mass: 78.96
  Atomic no: 34
  Atomic orbitals: {1s: -451.300258, 2p: -51.514388, 2s: -57.311948, 3d: -2.011392,
    3p: -5.553517, 3s: -7.547186, 4p: -0.245806, 4s: -0.621248}
  Atomic radius: 1.15
  Atomic radius calculated: 1.03
  Boiling point: 958 K
  Brinell hardness: 736 MN m<sup>-2</sup>
  Bulk modulus: 8.3 GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [-2, 2, 4, 6]
  Critical temperature: 1766 K
  Density of solid: 4819 kg m<sup>-3</sup>
  Electrical resistivity: high 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Ar].3d<sup>10</sup>.4s<sup>2</sup>.4p<sup>4</sup>'
  ICSD oxidation states: [-1, 4, -2, 6]
  Ionic radii: {'-2': 1.84, '4': 0.64, '6': 0.56}
  Liquid range: 464 K
  Melting point: 494 K
  Mendeleev no: 93
  Mineral hardness: '2.0'
  Molar volume: 16.42 cm<sup>3</sup>
  Name: Selenium
  Oxidation states: [-2, 2, 4, 6]
  Poissons ratio: '0.33'
  Reflectivity: no data %
  Refractive index: '1.000895'
  Rigidity modulus: 3.7 GPa
  Shannon radii:
    -2:
      VI:
        ? ''
        : {crystal_radius: 1.84, ionic_radius: 1.98}
    4:
      VI:
        ? ''
        : {crystal_radius: 0.64, ionic_radius: 0.5}
    6:
      IV:
        ? ''
        : {crystal_radius: 0.42, ionic_radius: 0.28}
      VI:
        ? ''
        : {crystal_radius: 0.56, ionic_radius: 0.42}
  Superconduction temperature: no data K
  Thermal conductivity: 0.52 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 1.9
  Velocity of sound: 3350 m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 2.55
  Youngs modulus: 10 GPa
Si:
  Atomic mass: 28.0855
  Atomic no: 14
  Atomic orbitals: {1s: -65.184426, 2p: -3.514938, 2s: -5.075056, 3p: -0.153293, 3s: -0.398139}
  Atomic radius: 1.1
  Atomic radius calculated: 1.11
  Boiling point: 3173 K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: 100 GPa
  Coefficient of linear thermal expansion: 2.6 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [-4, 4]
  Critical temperature: no data K
  Density of solid: 2330 kg m<sup>-3</sup>
  Electrical resistivity: about 100000 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Ne].3s<sup>2</sup>.3p<sup>2</sup>'
  ICSD oxidation states: [-4, 4]
  Ionic radii: {'4': 0.54}
  Liquid range: 1486 K
  Melting point: 1687 K
  Mendeleev no: 85
  Mineral hardness: '6.5'
  Molar volume: 12.06 cm<sup>3</sup>
  Name: Silicon
  Oxidation states: [-4, -3, -2, -1, 1, 2, 3, 4]
  Poissons ratio: no data
  Reflectivity: 28 %
  Refractive index: no data
  Rigidity modulus: no data GPa
  Shannon radii:
    4:
      IV:
        ? ''
        : {crystal_radius: 0.4, ionic_radius: 0.26}
      VI:
        ? ''
        : {crystal_radius: 0.54, ionic_radius: 0.4}
  Superconduction temperature: no data K
  Thermal conductivity: 150 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 2.1
  Velocity of sound: 2200 m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 1.9
  Youngs modulus: 47 GPa
Sm:
  Atomic mass: 150.36
  Atomic no: 62
  Atomic orbitals: {1s: -1617.183426, 2p: -242.729726, 2s: -255.498846, 3d: -39.528656,
    3p: -50.08426, 3s: -55.731133, 4d: -4.814978, 4f: -0.21776, 4p: -8.672685, 4s: -10.844667,
    5p: -0.835987, 5s: -1.408552, 6s: -0.128259}
  Atomic radius: 1.85
  Atomic radius calculated: 2.38
  Boiling point: 2076 K
  Brinell hardness: 441 MN m<sup>-2</sup>
  Bulk modulus: 38 GPa
  Coefficient of linear thermal expansion: 12.7 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [3]
  Critical temperature: no data K
  Density of solid: 7353 kg m<sup>-3</sup>
  Electrical resistivity: 94 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Xe].4f<sup>6</sup>.6s<sup>2</sup>'
  ICSD oxidation states: [2, 3]
  Ionic radii: {'2': 1.36, '3': 1.0979999999999999}
  Liquid range: 731 K
  Melting point: 1345 K
  Mendeleev no: 28
  Mineral hardness: no data
  Molar volume: 19.98 cm<sup>3</sup>
  Name: Samarium
  Oxidation states: [2, 3]
  Poissons ratio: '0.27'
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 20 GPa
  Shannon radii:
    2:
      IX:
        ? ''
        : {crystal_radius: 1.46, ionic_radius: 1.32}
      VII:
        ? ''
        : {crystal_radius: 1.36, ionic_radius: 1.22}
      VIII:
        ? ''
        : {crystal_radius: 1.41, ionic_radius: 1.27}
    3:
      IX:
        ? ''
        : {crystal_radius: 1.272, ionic_radius: 1.132}
      VI:
        ? ''
        : {crystal_radius: 1.098, ionic_radius: 0.958}
      VII:
        ? ''
        : {crystal_radius: 1.16, ionic_radius: 1.02}
      VIII:
        ? ''
        : {crystal_radius: 1.219, ionic_radius: 1.079}
      XII:
        ? ''
        : {crystal_radius: 1.38, ionic_radius: 1.24}
  Superconduction temperature: no data K
  Thermal conductivity: 13 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: 2130 m s<sup>-1</sup>
  Vickers hardness: 412 MN m<sup>-2</sup>
  X: 1.17
  Youngs modulus: 50 GPa
Sn:
  Atomic mass: 118.71
  Atomic no: 50
  Atomic orbitals: {1s: -1026.762169, 2p: -141.821093, 2s: -151.523991, 3d: -17.657276,
    3p: -25.117913, 3s: -29.125969, 4d: -1.004952, 4p: -3.211998, 4s: -4.546335, 5p: -0.14445,
    5s: -0.369349}
  Atomic radius: 1.45
  Atomic radius calculated: 1.45
  Boiling point: 2875 K
  Brinell hardness: 51 MN m<sup>-2</sup>
  Bulk modulus: 58 GPa
  Coefficient of linear thermal expansion: 22 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [-4, 2, 4]
  Critical temperature: no data K
  Density of solid: 7310 kg m<sup>-3</sup>
  Electrical resistivity: 11.5 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Kr].4d<sup>10</sup>.5s<sup>2</sup>.5p<sup>2</sup>'
  ICSD oxidation states: [2, 3, 4]
  Ionic radii: {'4': 0.83}
  Liquid range: 2369.92 K
  Melting point: 505.08 K
  Mendeleev no: 83
  Mineral hardness: '1.5'
  Molar volume: 16.29 cm<sup>3</sup>
  Name: Tin
  Oxidation states: [-4, 2, 4]
  Poissons ratio: '0.36'
  Reflectivity: 54 %
  Refractive index: no data
  Rigidity modulus: 18 GPa
  Shannon radii:
    4:
      IV:
        ? ''
        : {crystal_radius: 0.69, ionic_radius: 0.55}
      V:
        ? ''
        : {crystal_radius: 0.76, ionic_radius: 0.62}
      VI:
        ? ''
        : {crystal_radius: 0.83, ionic_radius: 0.69}
      VII:
        ? ''
        : {crystal_radius: 0.89, ionic_radius: 0.75}
      VIII:
        ? ''
        : {crystal_radius: 0.95, ionic_radius: 0.81}
  Superconduction temperature: 3.72 K
  Thermal conductivity: 67 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 2.17
  Velocity of sound: 2500 m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 1.96
  Youngs modulus: 50 GPa
Sr:
  Atomic mass: 87.62
  Atomic no: 38
  Atomic orbitals: {1s: -572.870169, 2p: -69.745941, 2s: -76.491823, 3d: -4.813498,
    3p: -9.301863, 3s: -11.771585, 4p: -0.844489, 4s: -1.455317, 5s: -0.131793}
  Atomic radius: 2.0
  Atomic radius calculated: 2.19
  Boiling point: 1655 K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: no data GPa
  Coefficient of linear thermal expansion: 22.5 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [2]
  Critical temperature: no data K
  Density of solid: 2630 kg m<sup>-3</sup>
  Electrical resistivity: 13.5 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Kr].5s<sup>2</sup>'
  ICSD oxidation states: [2]
  Ionic radii: {'2': 1.32}
  Liquid range: 605 K
  Melting point: 1050 K
  Mendeleev no: 15
  Mineral hardness: '1.5'
  Molar volume: 33.94 cm<sup>3</sup>
  Name: Strontium
  Oxidation states: [2]
  Poissons ratio: '0.28'
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 6.1 GPa
  Shannon radii:
    2:
      IX:
        ? ''
        : {crystal_radius: 1.45, ionic_radius: 1.31}
      VI:
        ? ''
        : {crystal_radius: 1.32, ionic_radius: 1.18}
      VII:
        ? ''
        : {crystal_radius: 1.35, ionic_radius: 1.21}
      VIII:
        ? ''
        : {crystal_radius: 1.4, ionic_radius: 1.26}
      X:
        ? ''
        : {crystal_radius: 1.5, ionic_radius: 1.36}
      XII:
        ? ''
        : {crystal_radius: 1.58, ionic_radius: 1.44}
  Superconduction temperature: no data K
  Thermal conductivity: 35 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 2.49
  Velocity of sound: no data m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 0.95
  Youngs modulus: no data GPa
Ta:
  Atomic mass: 180.94788
  Atomic no: 73
  Atomic orbitals: {1s: -2275.371387, 2p: -357.248334, 2s: -372.828724, 3d: -63.942521,
    3p: -77.440942, 3s: -84.658467, 4d: -8.265848, 4f: -1.199347, 4p: -13.71981, 4s: -16.713337,
    5d: -0.182464, 5p: -1.37653, 5s: -2.223807, 6s: -0.174814}
  Atomic radius: 1.45
  Atomic radius calculated: 2.0
  Boiling point: 5731 K
  Brinell hardness: 800 MN m<sup>-2</sup>
  Bulk modulus: 200 GPa
  Coefficient of linear thermal expansion: 6.3 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [5]
  Critical temperature: no data K
  Density of solid: 16650 kg m<sup>-3</sup>
  Electrical resistivity: 13.5 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Xe].4f<sup>14</sup>.5d<sup>3</sup>.6s<sup>2</sup>'
  ICSD oxidation states: [3, 4, 5]
  Ionic radii: {'3': 0.86, '4': 0.82, '5': 0.78}
  Liquid range: 2441 K
  Melting point: 3290 K
  Mendeleev no: 52
  Mineral hardness: '6.5'
  Molar volume: 10.85 cm<sup>3</sup>
  Name: Tantalum
  Oxidation states: [-1, 2, 3, 4, 5]
  Poissons ratio: '0.34'
  Reflectivity: 78 %
  Refractive index: no data
  Rigidity modulus: 69 GPa
  Shannon radii:
    3:
      VI:
        ? ''
        : {crystal_radius: 0.86, ionic_radius: 0.72}
    4:
      VI:
        ? ''
        : {crystal_radius: 0.82, ionic_radius: 0.68}
    5:
      VI:
        ? ''
        : {crystal_radius: 0.78, ionic_radius: 0.64}
      VII:
        ? ''
        : {crystal_radius: 0.83, ionic_radius: 0.69}
      VIII:
        ? ''
        : {crystal_radius: 0.88, ionic_radius: 0.74}
  Superconduction temperature: 4.47 K
  Thermal conductivity: 57 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: 3400 m s<sup>-1</sup>
  Vickers hardness: 873 MN m<sup>-2</sup>
  X: 1.5
  Youngs modulus: 186 GPa
Tb:
  Atomic mass: 158.92535
  Atomic no: 65
  Atomic orbitals: {1s: -1785.331942, 2p: -271.590585, 2s: -285.121013, 3d: -45.443863,
    3p: -56.785113, 3s: -62.851563, 4d: -5.467662, 4f: -0.256311, 4p: -9.735637, 4s: -12.120486,
    5p: -0.88723, 5s: -1.513669, 6s: -0.131677}
  Atomic radius: 1.75
  Atomic radius calculated: 2.25
  Boiling point: 3503 K
  Brinell hardness: 677 MN m<sup>-2</sup>
  Bulk modulus: 38.7 GPa
  Coefficient of linear thermal expansion: 10.3 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [3]
  Critical temperature: no data K
  Density of solid: 8219 kg m<sup>-3</sup>
  Electrical resistivity: 115 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Xe].4f<sup>9</sup>.6s<sup>2</sup>'
  ICSD oxidation states: [3, 4]
  Ionic radii: {'3': 1.063, '4': 0.9}
  Liquid range: 1874 K
  Melting point: 1629 K
  Mendeleev no: 26
  Mineral hardness: no data
  Molar volume: 19.30 cm<sup>3</sup>
  Name: Terbium
  Oxidation states: [1, 3, 4]
  Poissons ratio: '0.26'
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 22 GPa
  Shannon radii:
    3:
      IX:
        ? ''
        : {crystal_radius: 1.235, ionic_radius: 1.095}
      VI:
        ? ''
        : {crystal_radius: 1.063, ionic_radius: 0.923}
      VII:
        ? ''
        : {crystal_radius: 1.12, ionic_radius: 0.98}
      VIII:
        ? ''
        : {crystal_radius: 1.18, ionic_radius: 1.04}
    4:
      VI:
        ? ''
        : {crystal_radius: 0.9, ionic_radius: 0.76}
      VIII:
        ? ''
        : {crystal_radius: 1.02, ionic_radius: 0.88}
  Superconduction temperature: no data K
  Thermal conductivity: 11 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: 2620 m s<sup>-1</sup>
  Vickers hardness: 863 MN m<sup>-2</sup>
  X: 1.1
  Youngs modulus: 56 GPa
Tc:
  Atomic mass: 98.0
  Atomic no: 43
  Atomic orbitals: {1s: -745.742024, 2p: -96.61021, 2s: -104.567508, 3d: -9.33986,
    3p: -15.041738, 3s: -18.135303, 4d: -0.270262, 4p: -1.64323, 4s: -2.550712, 5s: -0.183636}
  Atomic radius: 1.35
  Atomic radius calculated: 1.83
  Boiling point: 4538 K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: no data GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [4, 7]
  Critical temperature: no data K
  Density of solid: 11500 kg m<sup>-3</sup>
  Electrical resistivity: about 22 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Kr].4d<sup>5</sup>.5s<sup>2</sup>'
  Ionic radii: {'4': 0.785, '5': 0.74, '7': 0.7}
  Liquid range: 2108 K
  Melting point: 2430 K
  Mendeleev no: 59
  Mineral hardness: no data
  Molar volume: 8.63 cm<sup>3</sup>
  Name: Technetium
  Oxidation states: [-3, -1, 1, 2, 3, 4, 5, 6, 7]
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: no data GPa
  Shannon radii:
    4:
      VI:
        ? ''
        : {crystal_radius: 0.785, ionic_radius: 0.645}
    5:
      VI:
        ? ''
        : {crystal_radius: 0.74, ionic_radius: 0.6}
    7:
      IV:
        ? ''
        : {crystal_radius: 0.51, ionic_radius: 0.37}
      VI:
        ? ''
        : {crystal_radius: 0.7, ionic_radius: 0.56}
  Superconduction temperature: 7.8 K
  Thermal conductivity: 51 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: no data m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 1.9
  Youngs modulus: no data GPa
Te:
  Atomic mass: 127.6
  Atomic no: 52
  Atomic orbitals: {1s: -1115.831819, 2p: -156.808583, 2s: -167.021776, 3d: -20.887801,
    3p: -28.860685, 3s: -33.137485, 4d: -1.608381, 4p: -4.100084, 4s: -5.572846, 5p: -0.226594,
    5s: -0.520997}
  Atomic radius: 1.4
  Atomic radius calculated: 1.23
  Boiling point: 1261 K
  Brinell hardness: 180 MN m<sup>-2</sup>
  Bulk modulus: 65 GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [-2, 2, 4, 6]
  Critical temperature: no data K
  Density of solid: 6240 kg m<sup>-3</sup>
  Electrical resistivity: about 10000 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Kr].4d<sup>10</sup>.5s<sup>2</sup>.5p<sup>4</sup>'
  ICSD oxidation states: [-2, 4, -1, 6]
  Ionic radii: {'-2': 2.07, '4': 1.11, '6': 0.7}
  Liquid range: 538.34 K
  Melting point: 722.66 K
  Mendeleev no: 92
  Mineral hardness: '2.25'
  Molar volume: 20.46 cm<sup>3</sup>
  Name: Tellurium
  Oxidation states: [-2, 2, 4, 5, 6]
  Poissons ratio: no data
  Reflectivity: 50 %
  Refractive index: '1.000991'
  Rigidity modulus: 16 GPa
  Shannon radii:
    -2:
      VI:
        ? ''
        : {crystal_radius: 2.07, ionic_radius: 2.21}
    4:
      III:
        ? ''
        : {crystal_radius: 0.66, ionic_radius: 0.52}
      IV:
        ? ''
        : {crystal_radius: 0.8, ionic_radius: 0.66}
      VI:
        ? ''
        : {crystal_radius: 1.11, ionic_radius: 0.97}
    6:
      IV:
        ? ''
        : {crystal_radius: 0.57, ionic_radius: 0.43}
      VI:
        ? ''
        : {crystal_radius: 0.7, ionic_radius: 0.56}
  Superconduction temperature: no data K
  Thermal conductivity: 3 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 2.06
  Velocity of sound: 2610 m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 2.1
  Youngs modulus: 43 GPa
Th:
  Atomic mass: 232.03806
  Atomic no: 90
  Atomic orbitals: {1s: -3524.439052, 2p: -588.218112, 2s: -608.350958, 3d: -123.846396,
    3p: -142.25581, 3s: -152.079741, 4d: -24.955184, 4f: -13.397389, 4p: -33.325252,
    4s: -37.814094, 5d: -3.625729, 5p: -6.58281, 5s: -8.287057, 6d: -0.172896, 6p: -0.846921,
    6s: -1.333769, 7s: -0.135872}
  Atomic radius: 1.8
  Atomic radius calculated: no data
  Boiling point: 5093 K
  Brinell hardness: 400 MN m<sup>-2</sup>
  Bulk modulus: 54 GPa
  Coefficient of linear thermal expansion: 11.0 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [4]
  Critical temperature: no data K
  Density of solid: 11724 kg m<sup>-3</sup>
  Electrical resistivity: 15 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Rn].6d<sup>2</sup>.7s<sup>2</sup>'
  ICSD oxidation states: [4]
  Ionic radii: {'4': 1.08}
  Liquid range: 2978 K
  Melting point: 2115 K
  Mendeleev no: 47
  Mineral hardness: '3.0'
  Molar volume: 19.80 cm<sup>3</sup>
  Name: Thorium
  Oxidation states: [2, 3, 4]
  Poissons ratio: '0.27'
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 31 GPa
  Shannon radii:
    4:
      IX:
        ? ''
        : {crystal_radius: 1.23, ionic_radius: 1.09}
      VI:
        ? ''
        : {crystal_radius: 1.08, ionic_radius: 0.94}
      VIII:
        ? ''
        : {crystal_radius: 1.19, ionic_radius: 1.05}
      X:
        ? ''
        : {crystal_radius: 1.27, ionic_radius: 1.13}
      XI:
        ? ''
        : {crystal_radius: 1.32, ionic_radius: 1.18}
      XII:
        ? ''
        : {crystal_radius: 1.35, ionic_radius: 1.21}
  Superconduction temperature: 1.38 K
  Thermal conductivity: 54 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: 2490 m s<sup>-1</sup>
  Vickers hardness: 350 MN m<sup>-2</sup>
  X: 1.3
  Youngs modulus: 79 GPa
Ti:
  Atomic mass: 47.867
  Atomic no: 22
  Atomic orbitals: {1s: -177.276643, 2p: -16.285339, 2s: -19.457901, 3d: -0.17001,
    3p: -1.422947, 3s: -2.258007, 4s: -0.167106}
  Atomic radius: 1.4
  Atomic radius calculated: 1.76
  Boiling point: 3560 K
  Brinell hardness: 716 MN m<sup>-2</sup>
  Bulk modulus: 110 GPa
  Coefficient of linear thermal expansion: 8.6 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [4]
  Critical temperature: no data K
  Density of solid: 4507 kg m<sup>-3</sup>
  Electrical resistivity: about 40 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Ar].3d<sup>2</sup>.4s<sup>2</sup>'
  ICSD oxidation states: [2, 3, 4]
  Ionic radii: {'2': 1.0, '3': 0.81, '4': 0.745}
  Liquid range: 1619 K
  Melting point: 1941 K
  Mendeleev no: 51
  Mineral hardness: '6.0'
  Molar volume: 10.64 cm<sup>3</sup>
  Name: Titanium
  Oxidation states: [-1, 2, 3, 4]
  Poissons ratio: '0.32'
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 44 GPa
  Shannon radii:
    2:
      VI:
        ? ''
        : {crystal_radius: 1.0, ionic_radius: 0.86}
    3:
      VI:
        ? ''
        : {crystal_radius: 0.81, ionic_radius: 0.67}
    4:
      IV:
        ? ''
        : {crystal_radius: 0.56, ionic_radius: 0.42}
      V:
        ? ''
        : {crystal_radius: 0.65, ionic_radius: 0.51}
      VI:
        ? ''
        : {crystal_radius: 0.745, ionic_radius: 0.605}
      VIII:
        ? ''
        : {crystal_radius: 0.88, ionic_radius: 0.74}
  Superconduction temperature: 0.40 K
  Thermal conductivity: 22 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: 4140 m s<sup>-1</sup>
  Vickers hardness: 970 MN m<sup>-2</sup>
  X: 1.54
  Youngs modulus: 116 GPa
Tl:
  Atomic mass: 204.3833
  Atomic no: 81
  Atomic orbitals: {1s: -2827.569408, 2p: -457.255971, 2s: -474.953368, 3d: -88.328299,
    3p: -104.099296, 3s: -112.52218, 4d: -14.008848, 4f: -4.835747, 4p: -20.797078,
    4s: -24.471512, 5d: -0.674544, 5p: -2.59873, 5s: -3.811512, 6p: -0.101507, 6s: -0.28502}
  Atomic radius: 1.9
  Atomic radius calculated: 1.56
  Boiling point: 1746 K
  Brinell hardness: 26.4 MN m<sup>-2</sup>
  Bulk modulus: 43 GPa
  Coefficient of linear thermal expansion: 29.9 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [1, 3]
  Critical temperature: no data K
  Density of solid: 11850 kg m<sup>-3</sup>
  Electrical resistivity: 15 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Xe].4f<sup>14</sup>.5d<sup>10</sup>.6s<sup>2</sup>.6p<sup>1</sup>'
  ICSD oxidation states: [1, 3]
  Ionic radii: {'1': 1.64, '3': 1.025}
  Liquid range: 1169 K
  Melting point: 577 K
  Mendeleev no: 78
  Mineral hardness: '1.2'
  Molar volume: 17.22 cm<sup>3</sup>
  Name: Thallium
  Oxidation states: [1, 3]
  Poissons ratio: '0.45'
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 2.8 GPa
  Shannon radii:
    1:
      VI:
        ? ''
        : {crystal_radius: 1.64, ionic_radius: 1.5}
      VIII:
        ? ''
        : {crystal_radius: 1.73, ionic_radius: 1.59}
      XII:
        ? ''
        : {crystal_radius: 1.84, ionic_radius: 1.7}
    3:
      IV:
        ? ''
        : {crystal_radius: 0.89, ionic_radius: 0.75}
      VI:
        ? ''
        : {crystal_radius: 1.025, ionic_radius: 0.885}
      VIII:
        ? ''
        : {crystal_radius: 1.12, ionic_radius: 0.98}
  Superconduction temperature: 2.38 K
  Thermal conductivity: 46 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 1.96
  Velocity of sound: 818 m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 1.62
  Youngs modulus: 8 GPa
Tm:
  Atomic mass: 168.93421
  Atomic no: 69
  Atomic orbitals: {1s: -2022.471608, 2p: -312.510608, 2s: -327.05712, 3d: -53.835494,
    3p: -66.239338, 3s: -72.873753, 4d: -6.350307, 4f: -0.28312, 4p: -11.187151, 4s: -13.865665,
    5p: -0.950748, 5s: -1.64999, 6s: -0.135953}
  Atomic radius: 1.75
  Atomic radius calculated: 2.22
  Boiling point: 2223 K
  Brinell hardness: 471 MN m<sup>-2</sup>
  Bulk modulus: 45 GPa
  Coefficient of linear thermal expansion: 13.3 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [3]
  Critical temperature: no data K
  Density of solid: 9321 kg m<sup>-3</sup>
  Electrical resistivity: 67.6 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Xe].4f<sup>13</sup>.6s<sup>2</sup>'
  ICSD oxidation states: [3]
  Ionic radii: {'2': 1.17, '3': 1.02}
  Liquid range: 405 K
  Melting point: 1818 K
  Mendeleev no: 21
  Mineral hardness: no data
  Molar volume: 19.1 cm<sup>3</sup>
  Name: Thulium
  Oxidation states: [2, 3]
  Poissons ratio: '0.21'
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 31 GPa
  Shannon radii:
    2:
      VI:
        ? ''
        : {crystal_radius: 1.17, ionic_radius: 1.03}
      VII:
        ? ''
        : {crystal_radius: 1.23, ionic_radius: 1.09}
    3:
      IX:
        ? ''
        : {crystal_radius: 1.192, ionic_radius: 1.052}
      VI:
        ? ''
        : {crystal_radius: 1.02, ionic_radius: 0.88}
      VIII:
        ? ''
        : {crystal_radius: 1.134, ionic_radius: 0.994}
  Superconduction temperature: no data K
  Thermal conductivity: 17 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: no data m s<sup>-1</sup>
  Vickers hardness: 520 MN m<sup>-2</sup>
  X: 1.25
  Youngs modulus: 74 GPa
U:
  Atomic mass: 238.02891
  Atomic no: 92
  Atomic orbitals: {1s: -3689.355141, 2p: -619.10855, 2s: -639.778728, 3d: -131.977358,
    3p: -150.97898, 3s: -161.118073, 4d: -27.123212, 4f: -15.02746, 4p: -35.853321,
    4s: -40.528084, 5d: -3.866175, 5f: -0.366543, 5p: -7.018092, 5s: -8.824089, 6d: -0.14319,
    6p: -0.822538, 6s: -1.325976, 7s: -0.130948}
  Atomic radius: 1.75
  Atomic radius calculated: no data
  Boiling point: 4200 K
  Brinell hardness: 2400 MN m<sup>-2</sup>
  Bulk modulus: 100 GPa
  Coefficient of linear thermal expansion: 13.9 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [6]
  Critical temperature: no data K
  Density of solid: 19050 kg m<sup>-3</sup>
  Electrical resistivity: 28 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Rn].5f<sup>3</sup>.6d<sup>1</sup>.7s<sup>2</sup>'
  ICSD oxidation states: [3, 4, 5, 6]
  Ionic radii: {'3': 1.165, '4': 1.03, '5': 0.9, '6': 0.87}
  Liquid range: 2794.7 K
  Melting point: 1405.3 K
  Mendeleev no: 45
  Mineral hardness: '6.0'
  Molar volume: 12.49 cm<sup>3</sup>
  Name: Uranium
  Oxidation states: [3, 4, 5, 6]
  Poissons ratio: '0.23'
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 111 GPa
  Shannon radii:
    3:
      VI:
        ? ''
        : {crystal_radius: 1.165, ionic_radius: 1.025}
    4:
      IX:
        ? ''
        : {crystal_radius: 1.19, ionic_radius: 1.05}
      VI:
        ? ''
        : {crystal_radius: 1.03, ionic_radius: 0.89}
      VII:
        ? ''
        : {crystal_radius: 1.09, ionic_radius: 0.95}
      VIII:
        ? ''
        : {crystal_radius: 1.14, ionic_radius: 1.0}
      XII:
        ? ''
        : {crystal_radius: 1.31, ionic_radius: 1.17}
    5:
      VI:
        ? ''
        : {crystal_radius: 0.9, ionic_radius: 0.76}
      VII:
        ? ''
        : {crystal_radius: 0.98, ionic_radius: 0.84}
    6:
      II:
        ? ''
        : {crystal_radius: 0.59, ionic_radius: 0.45}
      IV:
        ? ''
        : {crystal_radius: 0.66, ionic_radius: 0.52}
      VI:
        ? ''
        : {crystal_radius: 0.87, ionic_radius: 0.73}
      VII:
        ? ''
        : {crystal_radius: 0.95, ionic_radius: 0.81}
      VIII:
        ? ''
        : {crystal_radius: 1.0, ionic_radius: 0.86}
  Superconduction temperature: 0.2 K
  Thermal conductivity: 27 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 1.86
  Velocity of sound: 3155 m s<sup>-1</sup>
  Vickers hardness: 1960 MN m<sup>-2</sup>
  X: 1.38
  Youngs modulus: 208 GPa
V:
  Atomic mass: 50.9415
  Atomic no: 23
  Atomic orbitals: {1s: -195.224014, 2p: -18.435189, 2s: -21.815346, 3d: -0.204634,
    3p: -1.610516, 3s: -2.526904, 4s: -0.175968}
  Atomic radius: 1.35
  Atomic radius calculated: 1.71
  Boiling point: 3680 K
  Brinell hardness: 628 MN m<sup>-2</sup>
  Bulk modulus: 160 GPa
  Coefficient of linear thermal expansion: 8.4 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [5]
  Critical temperature: no data K
  Density of solid: 6110 kg m<sup>-3</sup>
  Electrical resistivity: 20 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Ar].3d<sup>3</sup>.4s<sup>2</sup>'
  ICSD oxidation states: [2, 3, 4, 5]
  Ionic radii: {'2': 0.93, '3': 0.78, '4': 0.72, '5': 0.68}
  Liquid range: 1497 K
  Melting point: 2183 K
  Mendeleev no: 54
  Mineral hardness: '7.0'
  Molar volume: 8.32 cm<sup>3</sup>
  Name: Vanadium
  Oxidation states: [-1, 1, 2, 3, 4, 5]
  Poissons ratio: '0.37'
  Reflectivity: 61 %
  Refractive index: no data
  Rigidity modulus: 47 GPa
  Shannon radii:
    2:
      VI:
        ? ''
        : {crystal_radius: 0.93, ionic_radius: 0.79}
    3:
      VI:
        ? ''
        : {crystal_radius: 0.78, ionic_radius: 0.64}
    4:
      V:
        ? ''
        : {crystal_radius: 0.67, ionic_radius: 0.53}
      VI:
        ? ''
        : {crystal_radius: 0.72, ionic_radius: 0.58}
      VIII:
        ? ''
        : {crystal_radius: 0.86, ionic_radius: 0.72}
    5:
      IV:
        ? ''
        : {crystal_radius: 0.495, ionic_radius: 0.355}
      V:
        ? ''
        : {crystal_radius: 0.6, ionic_radius: 0.46}
      VI:
        ? ''
        : {crystal_radius: 0.68, ionic_radius: 0.54}
  Superconduction temperature: 5.40 K
  Thermal conductivity: 31 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: 4560 m s<sup>-1</sup>
  Vickers hardness: 628 MN m<sup>-2</sup>
  X: 1.63
  Youngs modulus: 128 GPa
W:
  Atomic mass: 183.84
  Atomic no: 74
  Atomic orbitals: {1s: -2341.042887, 2p: -369.013973, 2s: -384.856157, 3d: -66.724787,
    3p: -80.502102, 3s: -87.867792, 4d: -8.879693, 4f: -1.550835, 4p: -14.495102,
    4s: -17.570797, 5d: -0.220603, 5p: -1.504457, 5s: -2.396018, 6s: -0.181413}
  Atomic radius: 1.35
  Atomic radius calculated: 1.93
  Boiling point: 5828 K
  Brinell hardness: 2570 MN m<sup>-2</sup>
  Bulk modulus: 310 GPa
  Coefficient of linear thermal expansion: 4.5 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [4, 6]
  Critical temperature: no data K
  Density of solid: 19250 kg m<sup>-3</sup>
  Electrical resistivity: 5.4 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Xe].4f<sup>14</sup>.5d<sup>4</sup>.6s<sup>2</sup>'
  ICSD oxidation states: [2, 3, 4, 5, 6]
  Ionic radii: {'4': 0.8, '5': 0.76, '6': 0.74}
  Liquid range: 2133 K
  Melting point: 3695 K
  Mendeleev no: 55
  Mineral hardness: '7.5'
  Molar volume: 9.47 cm<sup>3</sup>
  Name: Tungsten
  Oxidation states: [-2, -1, 1, 2, 3, 4, 5, 6]
  Poissons ratio: '0.28'
  Reflectivity: 62 %
  Refractive index: no data
  Rigidity modulus: 161 GPa
  Shannon radii:
    4:
      VI:
        ? ''
        : {crystal_radius: 0.8, ionic_radius: 0.66}
    5:
      VI:
        ? ''
        : {crystal_radius: 0.76, ionic_radius: 0.62}
    6:
      IV:
        ? ''
        : {crystal_radius: 0.56, ionic_radius: 0.42}
      V:
        ? ''
        : {crystal_radius: 0.65, ionic_radius: 0.51}
      VI:
        ? ''
        : {crystal_radius: 0.74, ionic_radius: 0.6}
  Superconduction temperature: 0.015 K
  Thermal conductivity: 170 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: 5174 m s<sup>-1</sup>
  Vickers hardness: 3430 MN m<sup>-2</sup>
  X: 2.36
  Youngs modulus: 411 GPa
Xe:
  Atomic mass: 131.293
  Atomic no: 54
  Atomic orbitals: {1s: -1208.688993, 2p: -172.599583, 2s: -183.327495, 3d: -24.37823,
    3p: -32.867042, 3s: -37.415454, 4d: -2.286666, 4p: -5.063802, 4s: -6.67834, 5p: -0.309835,
    5s: -0.672086}
  Atomic radius: no data
  Atomic radius calculated: 1.08
  Boiling point: 165.1 K
  Brinell hardness: no data MN m<sup>-2</sup>
  Bulk modulus: no data GPa
  Coefficient of linear thermal expansion: no data x10<sup>-6</sup>K<sup>-1</sup>
  Critical temperature: 289.7 K
  Density of solid: no data kg m<sup>-3</sup>
  Electrical resistivity: no data 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Kr].4d<sup>10</sup>.5s<sup>2</sup>.5p<sup>6</sup>'
  Ionic radii: {'8': 0.62}
  Liquid range: 3.7 K
  Max oxidation state: 8.0
  Melting point: 161.4 K
  Mendeleev no: 5
  Min oxidation state: 2.0
  Mineral hardness: no data
  Molar volume: 35.92 cm<sup>3</sup>
  Name: Xenon
  Poissons ratio: no data
  Reflectivity: no data %
  Refractive index: '1.000702'
  Rigidity modulus: no data GPa
  Shannon radii:
    8:
      IV:
        ? ''
        : {crystal_radius: 0.54, ionic_radius: 0.4}
      VI:
        ? ''
        : {crystal_radius: 0.62, ionic_radius: 0.48}
  Superconduction temperature: no data K
  Thermal conductivity: 0.00565 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 2.16
  Velocity of sound: 1090 m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 2.6
  Youngs modulus: no data GPa
Y:
  Atomic mass: 88.90585
  Atomic no: 39
  Atomic orbitals: {1s: -605.631981, 2p: -74.803201, 2s: -81.789102, 3d: -5.671499,
    3p: -10.399926, 3s: -12.992217, 4d: -0.108691, 4p: -1.02449, 4s: -1.697124, 5s: -0.150727}
  Atomic radius: 1.8
  Atomic radius calculated: 2.12
  Boiling point: 3609 K
  Brinell hardness: 589 MN m<sup>-2</sup>
  Bulk modulus: 41 GPa
  Coefficient of linear thermal expansion: 10.6 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [3]
  Critical temperature: no data K
  Density of solid: 4472 kg m<sup>-3</sup>
  Electrical resistivity: about 60 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Kr].4d<sup>1</sup>.5s<sup>2</sup>'
  ICSD oxidation states: [3]
  Ionic radii: {'3': 1.04}
  Liquid range: 1810 K
  Melting point: 1799 K
  Mendeleev no: 25
  Mineral hardness: no data
  Molar volume: 19.88 cm<sup>3</sup>
  Name: Yttrium
  Oxidation states: [1, 2, 3]
  Poissons ratio: '0.24'
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 26 GPa
  Shannon radii:
    3:
      IX:
        ? ''
        : {crystal_radius: 1.215, ionic_radius: 1.075}
      VI:
        ? ''
        : {crystal_radius: 1.04, ionic_radius: 0.9}
      VII:
        ? ''
        : {crystal_radius: 1.1, ionic_radius: 0.96}
      VIII:
        ? ''
        : {crystal_radius: 1.159, ionic_radius: 1.019}
  Superconduction temperature: 1.3  (under pressure)K
  Thermal conductivity: 17 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: 3300 m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 1.22
  Youngs modulus: 64 GPa
Yb:
  Atomic mass: 173.04
  Atomic no: 70
  Atomic orbitals: {1s: -2084.069389, 2p: -323.178219, 2s: -337.978976, 3d: -56.026315,
    3p: -68.698655, 3s: -75.47663, 4d: -6.574963, 4f: -0.286408, 4p: -11.558246, 4s: -14.312076,
    5p: -0.966137, 5s: -1.683886, 6s: -0.136989}
  Atomic radius: 1.75
  Atomic radius calculated: 2.22
  Boiling point: 1469 K
  Brinell hardness: 343 MN m<sup>-2</sup>
  Bulk modulus: 31 GPa
  Coefficient of linear thermal expansion: 26.3 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [3]
  Critical temperature: no data K
  Density of solid: 6570 kg m<sup>-3</sup>
  Electrical resistivity: 25.0 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Xe].4f<sup>14</sup>.6s<sup>2</sup>'
  ICSD oxidation states: [2, 3]
  Ionic radii: {'2': 1.16, '3': 1.008}
  Liquid range: 372 K
  Melting point: 1097 K
  Mendeleev no: 17
  Mineral hardness: no data
  Molar volume: 24.84 cm<sup>3</sup>
  Name: Ytterbium
  Oxidation states: [2, 3]
  Poissons ratio: '0.21'
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 9.9 GPa
  Shannon radii:
    2:
      VI:
        ? ''
        : {crystal_radius: 1.16, ionic_radius: 1.02}
      VII:
        ? ''
        : {crystal_radius: 1.22, ionic_radius: 1.08}
      VIII:
        ? ''
        : {crystal_radius: 1.28, ionic_radius: 1.14}
    3:
      IX:
        ? ''
        : {crystal_radius: 1.182, ionic_radius: 1.042}
      VI:
        ? ''
        : {crystal_radius: 1.008, ionic_radius: 0.868}
      VII:
        ? ''
        : {crystal_radius: 1.065, ionic_radius: 0.925}
      VIII:
        ? ''
        : {crystal_radius: 1.125, ionic_radius: 0.985}
  Superconduction temperature: no data K
  Thermal conductivity: 39 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: 1590 m s<sup>-1</sup>
  Vickers hardness: 206 MN m<sup>-2</sup>
  X: 1.1
  Youngs modulus: 24 GPa
Zn:
  Atomic mass: 65.409
  Atomic no: 30
  Atomic orbitals: {1s: -344.969756, 2p: -36.648765, 2s: -41.531323, 3d: -0.398944,
    3p: -3.022363, 3s: -4.573041, 4s: -0.222725}
  Atomic radius: 1.35
  Atomic radius calculated: 1.42
  Boiling point: 1180 K
  Brinell hardness: 412 MN m<sup>-2</sup>
  Bulk modulus: 70 GPa
  Coefficient of linear thermal expansion: 30.2 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [2]
  Critical temperature: no data K
  Density of solid: 7140 kg m<sup>-3</sup>
  Electrical resistivity: 6.0 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Ar].3d<sup>10</sup>.4s<sup>2</sup>'
  ICSD oxidation states: [2]
  Ionic radii: {'2': 0.88}
  Liquid range: 487.32 K
  Melting point: 692.68 K
  Mendeleev no: 76
  Mineral hardness: '2.5'
  Molar volume: 9.16 cm<sup>3</sup>
  Name: Zinc
  Oxidation states: [1, 2]
  Poissons ratio: '0.25'
  Reflectivity: 80 %
  Refractive index: '1.002050'
  Rigidity modulus: 43 GPa
  Shannon radii:
    2:
      IV:
        ? ''
        : {crystal_radius: 0.74, ionic_radius: 0.6}
      V:
        ? ''
        : {crystal_radius: 0.82, ionic_radius: 0.68}
      VI:
        ? ''
        : {crystal_radius: 0.88, ionic_radius: 0.74}
      VIII:
        ? ''
        : {crystal_radius: 1.04, ionic_radius: 0.9}
  Superconduction temperature: 0.85 K
  Thermal conductivity: 120 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: 1.39
  Velocity of sound: 3700 m s<sup>-1</sup>
  Vickers hardness: no data MN m<sup>-2</sup>
  X: 1.65
  Youngs modulus: 108 GPa
Zr:
  Atomic mass: 91.224
  Atomic no: 40
  Atomic orbitals: {1s: -639.292236, 2p: -80.010043, 2s: -87.237062, 3d: -6.544643,
    3p: -11.514415, 3s: -14.230432, 4d: -0.150673, 4p: -1.186597, 4s: -1.918971, 5s: -0.162391}
  Atomic radius: 1.55
  Atomic radius calculated: 2.06
  Boiling point: 4682 K
  Brinell hardness: 650 MN m<sup>-2</sup>
  Bulk modulus: no data GPa
  Coefficient of linear thermal expansion: 5.7 x10<sup>-6</sup>K<sup>-1</sup>
  Common oxidation states: [4]
  Critical temperature: no data K
  Density of solid: 6511 kg m<sup>-3</sup>
  Electrical resistivity: 43.3 10<sup>-8</sup> &Omega; m
  Electronic structure: '[Kr].4d<sup>2</sup>.5s<sup>2</sup>'
  ICSD oxidation states: [2, 3, 4]
  Ionic radii: {'4': 0.86}
  Liquid range: 2554 K
  Melting point: 2128 K
  Mendeleev no: 49
  Mineral hardness: '5.0'
  Molar volume: 14.02 cm<sup>3</sup>
  Name: Zirconium
  Oxidation states: [1, 2, 3, 4]
  Poissons ratio: '0.34'
  Reflectivity: no data %
  Refractive index: no data
  Rigidity modulus: 33 GPa
  Shannon radii:
    4:
      IV:
        ? ''
        : {crystal_radius: 0.73, ionic_radius: 0.59}
      IX:
        ? ''
        : {crystal_radius: 1.03, ionic_radius: 0.89}
      V:
        ? ''
        : {crystal_radius: 0.8, ionic_radius: 0.66}
      VI:
        ? ''
        : {crystal_radius: 0.86, ionic_radius: 0.72}
      VII:
        ? ''
        : {crystal_radius: 0.92, ionic_radius: 0.78}
      VIII:
        ? ''
        : {crystal_radius: 0.98, ionic_radius: 0.84}
  Superconduction temperature: 0.61 K
  Thermal conductivity: 23 W m<sup>-1</sup> K<sup>-1</sup>
  Van der waals radius: no data
  Velocity of sound: 3800 m s<sup>-1</sup>
  Vickers hardness: 903 MN m<sup>-2</sup>
  X: 1.33
  Youngs modulus: 68 GPa
D:
  Atomic no: 1
  Atomic mass: 2.013553212712
  Atomic mass no: 2
  Common oxidation states: [-1, 1]
  Is named isotope: true
  Name: Deuterium
  Oxidation states: [-1, -1]
  Shannon radii:
    1:
      II:
        ? ''
        : {crystal_radius: 0.04, ionic_radius: -0.1}
  Electron affinity: 0.754674
T:
  Atomic no: 1
  Atomic mass: 3.0155007134
  Atomic mass no: 3
  Common oxidation states: [-1, -1]
  Is named isotope: true
  Name: Tritium
  Oxidation states: [-1, -1]
  Electron affinity:
