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 Vodík H 1.01

2 Helium He 4.00

2

3 Lithium Li 6.94

4 Beryllium Be 9.01

5 Bor B 10.81

6 Uhlík C 12.01

7 Dusík N 14.01

8 Kyslík O 16.00

9 Fluor F 19.00

10 Neon Ne 20.18

3

11 Sodík Na 23.00

12 Hořčík Mg 24.31

13 Hliník Al 26.98

14 Křemík Si 28.09

15 Fosfor P 30.97

16 Síra S 32.07

17 Chlor Cl 35.45

18 Argon Ar 39.95

4

19 Draslík K 39.10

20 Vápník Ca 40.08

21 Skandium Sc 44.96

22 Titan Ti 47.89

23 Vanad V 50.94

24 Chrom Cr 52.00

25 Mangan Mn 54.94

26 Železo Fe 55.85

27 Kobalt Co 58.93

28 Nikl Ni 58.69

29 Měď Cu 63.55

30 Zinek Zn 65.39

31 Gallium Ga 69.72

32 Germanium Ge 72.61

33 Arzen As 74.92

34 Selen Se 78.96

35 Brom Br 79.90

36 Krypton Kr 83.80

5

37 Rubidium Rb 85.48

38 Stroncium Sr 87.62

39 Yttrium Y 88.91

40 Zirkonium Zr 91.22

41 Niob Nb 92.91

42 Molybden Mo 95.94

43 Technecium Tc [99]

44 Ruthenium Ru 101.07

45 Rhodium Rh 102.91

46 Palladium Pd 106.42

47 Stříbro Ag 107.87

48 Kadmium Cd 112.41

49 Indium In 114.82

50 Cín Sn 118.71

51 Antimon Sb 121.76

52 Tellur Te 127.60

53 Jod I 126.90

54 Xenon Xe 131.29

6

55 Cesium Cs 132.91

56 Baryum Ba 137.33

57-71 Lanthanoidy *

72 Hafnium Hf 178.49

73 Tantal Ta 180.95

74 Wolfram W 183.84

75 Rhenium Re 186.21

76 Osmium Os 190.23

77 Iridium Ir 192.22

78 Platina Pt 195.08

79 Zlato Au 196.97

80 Rtuť Hg 200.59

81 Thallium Tl 204.38

82 Olovo Pb 207.21

83 Bismut Bi 208.98

84 Polonium Po [210]

85 Astat At [210]

86 Radon Rn [222]

7

87 Francium Fr [223]

88 Radium Ra [226]

89-103 Aktinoidy **

104 Rutherfordium Rf [261]

105 Dubnium Db [262]

106 Seaborgium Sg [263]

107 Bohrium Bh [262]

108 Hassium Hs [277]

109 Meitnerium Mt [278]

110 Darmstadtium Ds [281]

111 Roentgenium Rg [281]

112 Kopernicium Cn [285]

113 Nihonium Nh [286]

114 Flerovium Fl [289]

115 Moscovium Mc [289]

116 Livermorium Lv [293]

117 Tennessine Ts [294]

118 Oganesson Og [294]

*

57 Lanthan La 138.91

58 Cer Ce 140.12

59 Praseodym Pr 140.91

60 Neodym Nd 144.24

61 Promethium Pm [145]

62 Samarium Sm 150.36

63 Europium Eu 151.97

64 Gadolinium Gd 157.25

65 Terbium Tb 158.93

66 Dysprosium Dy 162.50

67 Holmium Ho 164.93

68 Erbium Er 167.26

69 Thulium Tm 168.93

70 Ytterbium Yb 173.04

71 Lutecium Lu 174.97

**

89 Aktinium Ac [227]

90 Thorium Th 232.04

91 Protaktinium Pa 231.04

92 Uran U 238.03

93 Neptunium Np [237]

94 Plutonium Pu [239]

95 Americium Am [243]

96 Curium Cm [247]

97 Berkelium Bk [247]

98 Kalifornium Cf [252]

99 Einsteinium Es [252]

100 Fermium Fm [257]

101 Mendelevium Md [256]

102 Nobelium No [259]

103 Lawrencium Lr [260]