IA

IIA

IIIA

IVA

VA

VIA

VIIA

VIII

IB

IIB

IIIB

IVB

VB

VIB

VIIB

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

1

1 氢 H 1.01

2 氦 He 4.00

2

3 锂 Li 6.94

4 铍 Be 9.01

5 硼 B 10.81

6 碳 C 12.01

7 氮 N 14.01

8 氧 O 16.00

9 氟 F 19.00

10 氖 Ne 20.18

3

11 钠 Na 23.00

12 镁 Mg 24.31

13 铝 Al 26.98

14 硅 Si 28.09

15 磷 P 30.97

16 硫 S 32.07

17 氯 Cl 35.45

18 氩 Ar 39.95

4

19 钾 K 39.10

20 钙 Ca 40.08

21 钪 Sc 44.96

22 钛 Ti 47.89

23 钒 V 50.94

24 铬 Cr 52.00

25 锰 Mn 54.94

26 铁 Fe 55.85

27 钴 Co 58.93

28 镍 Ni 58.69

29 铜 Cu 63.55

30 锌 Zn 65.39

31 镓 Ga 69.72

32 锗 Ge 72.61

33 砷 As 74.92

34 硒 Se 78.96

35 溴 Br 79.90

36 氪 Kr 83.80

5

37 铷 Rb 85.48

38 锶 Sr 87.62

39 钇 Y 88.91

40 锆 Zr 91.22

41 铌 Nb 92.91

42 钼 Mo 95.94

43 锝 Tc [99]

44 钌 Ru 101.07

45 铑 Rh 102.91

46 钯 Pd 106.42

47 银 Ag 107.87

48 镉 Cd 112.41

49 铟 In 114.82

50 锡 Sn 118.71

51 锑 Sb 121.76

52 碲 Te 127.60

53 碘 I 126.90

54 氙 Xe 131.29

6

55 铯 Cs 132.91

56 钡 Ba 137.33

57-71 镧 *

72 铪 Hf 178.49

73 钽 Ta 180.95

74 钨 W 183.84

75 铼 Re 186.21

76 锇 Os 190.23

77 铱 Ir 192.22

78 铂 Pt 195.08

79 金 Au 196.97

80 汞 Hg 200.59

81 铊 Tl 204.38

82 铅 Pb 207.21

83 铋 Bi 208.98

84 钋 Po [210]

85 砹 At [210]

86 氡 Rn [222]

7

87 钫 Fr [223]

88 镭 Ra [226]

89-103 锕 **

104 𬬻 Rf [261]

105 𬭊 Db [262]

106 𬭳 Sg [263]

107 𬭛 Bh [262]

108 𬭶 Hs [277]

109 鿏 Mt [278]

110 𫟼 Ds [281]

111 𬬭 Rg [281]

112 鿔 Cn [285]

113 鿭 Nh [286]

114 𫓧 Fl [289]

115 镆 Mc [289]

116 𫟷 Lv [293]

117 鿬 Ts [294]

118 鿫 Og [294]

*

57 镧 La 138.91

58 铈 Ce 140.12

59 镨 Pr 140.91

60 钕 Nd 144.24

61 钷 Pm [145]

62 钐 Sm 150.36

63 铕 Eu 151.97

64 钆 Gd 157.25

65 铽 Tb 158.93

66 镝 Dy 162.50

67 钬 Ho 164.93

68 铒 Er 167.26

69 铥 Tm 168.93

70 镱 Yb 173.04

71 镥 Lu 174.97

**

89 锕 Ac [227]

90 钍 Th 232.04

91 镤 Pa 231.04

92 铀 U 238.03

93 镎 Np [237]

94 钚 Pu [239]

95 镅 Am [243]

96 锔 Cm [247]

97 锫 Bk [247]

98 锎 Cf [252]

99 锿 Es [252]

100 镄 Fm [257]

101 钔 Md [256]

102 锘 No [259]

103 铹 Lr [260]