1 H 氢 1.0079
2 He 氦 4.0026
3 Li 锂 6.941
4 Be 铍 9.0122
5 B 硼 10.811
6 C 碳 12.011
7 N 氮 14.007
8 O 氧 15.999
9 F 氟 18.998
10 Ne 氖 20.17
11 Na 钠 22.9898
12 Mg 镁 24.305
13 Al 铝 26.982
14 Si 硅 28.085
15 P 磷 30.974
16 S 硫 32.06
17 Cl 氯 35.453
18 Ar 氩 39.94
19 K 钾 39.098
20 Ca 钙 40.08
21 Sc 钪 44.956
22 Ti 钛 47.9
23 V 钒 50.94
24 Cr 铬 51.996
25 Mn 锰 54.938
26 Fe 铁 55.84
27 Co 钴 58.9332
28 Ni 镍 58.69
29 Cu 铜 63.54
30 Zn 锌 65.38
31 Ga 镓 69.72
32 Ge 锗 72.5
33 As 砷 74.922
34 Se 硒 78.9
35 Br 溴 79.904
36 Kr 氪 83.8
37 Rb 铷 85.467
38 Sr 锶 87.62
39 Y 钇 88.906
40 Zr 锆 91.22
41 Nb 铌 92.9064
42 Mo 钼 95.94
43 Tc 锝 (99)
44 Ru 钌 161.0
45 Rh 铑 102.906
46 Pd 钯 106.42
47 Ag 银 107.868
48 Cd 镉 112.41
49 In 铟 114.82
50 Sn 锡 118.6
51 Sb 锑 121.7
52 Te 碲 127.6
53 I 碘 126.905
54 Xe 氙 131.3
55 Cs 铯 132.905
56 Ba 钡 137.33
57-71La-Lu 镧系
57 La 镧 138.9
58 Ce 铈 140.1
59 Pr 镨 140.9
60 Nd 钕 144.2
61 Pm 钷 (147)
62 Sm 钐 150.3
63 Eu 铕 151.96
64 Gd 钆 157.25
65 Tb 铽 158.9
66 Dy 镝 162.5
67 Ho 钬 164.9
68 Er 铒 167.2
69 Tm 铥 168.9
70 Yb 镱 173.04
71 Lu 镥 174.967
72 Hf 铪 178.4
73 Ta 钽 180.947
74 W 钨 183.8
75 Re 铼 186.207
76 Os 锇 190.2
77 Ir 铱 192.2
78 Pt 铂 195.08
79 Au 金 196.967
80 Hg 汞 200.5
81 Tl 铊 204.3
82 Pb 铅 207.2
83 Bi 铋 208.98
84 Po 钋 (209)
85 At 砹 (201)
86 Rn 氡 (222)
87 Fr 钫 (223)
88 Ra 镭 226.03
89-103Ac-Lr 锕系
89 Ac 锕 (227)
90 Th 钍 232.0
91 Pa 镤 231.0
92 U 铀 238.0
93 Np 镎 (237)
94 Pu 钚 (239,244)
95 Am 镅 (243)
96 Cm 锔 (247)
97 Bk 锫 (247)
98 Cf 锎 (251)
99 Es 锿 (252)
100 Fm 镄 (257)
101 Md 钔 (258)
102 No 锘 (259)
103 Lr 铹 (260)
104 Rf 钅卢 (257)
105 Db 钅杜 (261)
