| 
 H 1.01  | 
 He 4.00  | 
||||||||||||||||||
| 
 Li 6.94  | 
 Be 9.01  | 
 B 10.81  | 
 C 12.01  | 
 N 14.01  | 
 O 16.00  | 
 F 19.00  | 
 Ne 20.18  | 
||||||||||||
| 
 Na 22.99  | 
 Mg 24.31  | 
 Al 26.98  | 
 Si 28.09  | 
 P 30.97  | 
 S 32.06  | 
 Cl 35.45  | 
 Ar 39.95  | 
||||||||||||
| 
 K 39.10  | 
 Ca 40.08  | 
 Sc 44.96  | 
 Ti 47.88  | 
 V 50.94  | 
 Cr 52.00  | 
 Mn 54.94  | 
 Fe 55.85  | 
 Co 58.93  | 
 Ni 58.69  | 
 Cu 63.55  | 
 Zn 65.39  | 
 Ga 69.72  | 
 Ge 72.59  | 
 As 74.92  | 
 Se 78.96  | 
 Br 79.90  | 
 Kr 83.80  | 
||
| 
 Rb 85.47  | 
 Sr 87.62  | 
 Y 88.91  | 
 Zr 91.22  | 
 Nb 92.91  | 
 Mo 95.94  | 
 Tc (98)  | 
 Ru 101.07  | 
 Rh 102.91  | 
 Pd 106.42  | 
 Ag 107.87  | 
 Cd 112.41  | 
 In 114.82  | 
 Sn 118.71  | 
 Sb 121.75  | 
 Te 127.60  | 
 I 126.91  | 
 Xe 131.29  | 
||
| 
 Cs 132.91  | 
 Ba 137.33  | 
 La 138.91  | 
 Hf 178.49  | 
 Ta 180.95  | 
 W 183.85  | 
 Re 186.21  | 
 Os 190.2  | 
 Ir 192.22  | 
 Pt 195.08  | 
 Au 196.97  | 
 Hg 200.59  | 
 Tl 204.38  | 
 Pb 207.2  | 
 Bi 208.98  | 
 Po (209)  | 
 At (210)  | 
 Rn (222)  | 
||
| 
 Fr (223)  | 
 Ra 226.03  | 
 Ac 227.03  | 
 Rf (261)  | 
 Ha (262)  | 
 Sg (263)  | 
 Ns (262)  | 
 Hs (266)  | 
 Mt (266)  | 
 Uun (269)  | 
 Uuu (272)  | 
 Uub (277)  | 
||||||||
| 
 Ce 140.12  | 
 Pr 140.91  | 
 Nd 144.24  | 
 Pm (145)  | 
 Sm 150.36  | 
 Eu 151.96  | 
 Gd 157.25  | 
 Tb 158.93  | 
 Dy 162.50  | 
 Ho 164.93  | 
 Er 167.26  | 
 Tm 168.93  | 
 Yb 173.04  | 
 Lu 174.97  | 
||||||
| 
 Th 232.03  | 
 Pa 231.04  | 
 U 238.03  | 
 Np 237.05  | 
 Pu (244)  | 
 Am (243)  | 
 Cm (247)  | 
 Bk (247)  | 
 Cf (251)  | 
 Es (252)  | 
 Fm (257)  | 
 Md (258)  | 
 No (259)  | 
 Lr (260)  | 
||||||
Reference: Z. Su and P. Coppens, 
Acta Cryst.  A53, 749-762 (1997).
Preparation of the table: C. Kim, I. Novozhilova, and P. Coppens.