number,symbol,name,Empirical,Calculated,van der Waals,Covalent (single bond),Covalent (triple bond),Metallic
1,H,hydrogen,25,53,120,38,no data,
2,He,helium,no data,31,140,32,no data,
3,Li,lithium,145,167,182,134,no data,152
4,Be,beryllium,105,112,153,90,85,112
5,B,boron,85,87,192,82,73,
6,C,carbon,70,67,170,77,60,
7,N,nitrogen,65,56,155,75,54,
8,O,oxygen,60,48,152,73,53,
9,F,fluorine,50,42,147,71,53,
10,Ne,neon,no data,38,154,69,no data,
11,Na,sodium,180,190,227,154,no data,186
12,Mg,magnesium,150,145,173,130,127,160
13,Al,aluminium,125,118,184,118,111,143
14,Si,silicon,110,111,210,111,102,
15,P,phosphorus,100,98,180,106,94,
16,S,sulfur,100,88,180,102,95,
17,Cl,chlorine,100,79,175,99,93,
18,Ar,argon,71,71,188,97,96,
19,K,potassium,220,243,275,196,no data,227
20,Ca,calcium,180,194,231,174,133,197
21,Sc,scandium,160,184,211,144,114,162
22,Ti,titanium,140,176,no data,136,108,147
23,V,vanadium,135,171,no data,125,106,134
24,Cr,chromium,140,166,no data,127,103,128
25,Mn,manganese,140,161,no data,139,103,127
26,Fe,iron,140,156,no data,125,102,126
27,Co,cobalt,135,152,no data,126,96,125
28,Ni,nickel,135,149,163,121,101,124
29,Cu,copper,135,145,140,138,120,128
30,Zn,zinc,135,142,139,131,no data,134
31,Ga,gallium,130,136,187,126,121,135
32,Ge,germanium,125,125,211,122,114,
33,As,arsenic,115,114,185,119,106,
34,Se,selenium,115,103,190,116,107,
35,Br,bromine,115,94,185,114,110,
36,Kr,krypton,no data,88,202,110,108,
37,Rb,rubidium,235,265,303,211,no data,248
38,Sr,strontium,200,219,249,192,139,215
39,Y,yttrium,180,212,no data,162,124,180
40,Zr,zirconium,155,206,no data,148,121,160
41,Nb,niobium,145,198,no data,137,116,146
42,Mo,molybdenum,145,190,no data,145,113,139
43,Tc,technetium,135,183,no data,156,110,136
44,Ru,ruthenium,130,178,no data,126,103,134
45,Rh,rhodium,135,173,no data,135,106,134
46,Pd,palladium,140,169,163,131,112,137
47,Ag,silver,160,165,172,153,137,144
48,Cd,cadmium,155,161,158,148,no data,151
49,In,indium,155,156,193,144,146,167
50,Sn,tin,145,145,217,141,132,
51,Sb,antimony,145,133,206,138,127,
52,Te,tellurium,140,123,206,135,121,
53,I,iodine,140,115,198,133,125,
54,Xe,xenon,no data,108,216,130,122,
55,Cs,caesium,260,298,343,225,no data,265
56,Ba,barium,215,253,268,198,149,222
57,La,lanthanum,195,no data,no data,169,139,187
58,Ce,cerium,185,no data,no data,no data,131,181.8
59,Pr,praseodymium,185,247,no data,no data,128,182.4
60,Nd,neodymium,185,206,no data,no data,no data,181.4
61,Pm,promethium,185,205,no data,no data,no data,183.4
62,Sm,samarium,185,238,no data,no data,no data,180.4
63,Eu,europium,185,231,no data,no data,no data,180.4
64,Gd,gadolinium,180,233,no data,no data,132,180.4
65,Tb,terbium,175,225,no data,no data,no data,177.3
66,Dy,dysprosium,175,228,no data,no data,no data,178.1
67,Ho,holmium,175,no data,no data,no data,no data,176.2
68,Er,erbium,175,226,no data,no data,no data,176.1
69,Tm,thulium,175,222,no data,no data,no data,175.9
70,Yb,ytterbium,175,222,no data,no data,no data,176
71,Lu,lutetium,175,217,no data,160,131,173.8
72,Hf,hafnium,155,208,no data,150,122,159
73,Ta,tantalum,145,200,no data,138,119,146
74,W,tungsten,135,193,no data,146,115,139
75,Re,rhenium,135,188,no data,159,110,137
76,Os,osmium,130,185,no data,128,109,135
77,Ir,iridium,135,180,no data,137,107,135.5
78,Pt,platinum,135,177,175,128,110,138.5
79,Au,gold,135,174,166,144,123,144
80,Hg,mercury,150,171,155,149,no data,151
81,Tl,thallium,190,156,196,148,150,170
82,Pb,lead,180,154,202,147,137,
83,Bi,bismuth,160,143,207,146,135,
84,Po,polonium,190,135,197,no data,129,
85,At,astatine,no data,no data,202,no data,138,
86,Rn,radon,no data,120,220,145,133,
87,Fr,francium,no data,no data,348,no data,no data,no data
88,Ra,radium,215,no data,283,no data,159,no data
89,Ac,actinium,195,no data,no data,no data,140,
90,Th,thorium,180,no data,no data,no data,136,179
91,Pa,protactinium,180,no data,no data,no data,129,163
92,U,uranium,175,no data,186,no data,118,156
93,Np,neptunium,175,no data,no data,no data,116,155
94,Pu,plutonium,175,no data,no data,no data,no data,159
95,Am,americium,175,no data,no data,no data,no data,173
96,Cm,curium,no data,no data,no data,no data,no data,174
97,Bk,berkelium,no data,no data,no data,no data,no data,170
98,Cf,californium,no data,no data,no data,no data,no data,186+/- 2
99,Es,einsteinium,no data,no data,no data,no data,no data,186+/- 2
100,Fm,fermium,no data,no data,no data,no data,no data,no data
101,Md,mendelevium,no data,no data,no data,no data,no data,no data
102,No,nobelium,no data,no data,no data,no data,no data,no data
103,Lr,lawrencium,no data,no data,no data,no data,no data,no data
104,Rf,rutherfordium,no data,no data,no data,no data,131,no data
105,Db,dubnium,no data,no data,no data,no data,126,no data
106,Sg,seaborgium,no data,no data,no data,no data,121,no data
107,Bh,bohrium,no data,no data,no data,no data,119,no data
108,Hs,hassium,no data,no data,no data,no data,118,no data
109,Mt,meitnerium,no data,no data,no data,no data,113,no data
110,Ds,darmstadtium,no data,no data,no data,no data,112,no data
111,Rg,roentgenium,no data,no data,no data,no data,118,no data
112,Cn,copernicium,no data,no data,no data,no data,130,no data
113,Uut,ununtrium,no data,no data,no data,no data,no data,no data
114,Fl,flerovium,no data,no data,no data,no data,no data,no data
115,Uup,ununpentium,no data,no data,no data,no data,no data,no data
116,Lv,livermorium,no data,no data,no data,no data,no data,no data
117,Uus,ununseptium,no data,no data,no data,no data,no data,no data
118,Uuo,ununoctium,no data,no data,no data,no data,no data,no data
