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 Väte H 1.01

2 Helium He 4.00

2

3 Litium Li 6.94

4 Beryllium Be 9.01

5 Bor B 10.81

6 Kol C 12.01

7 Kväve N 14.01

8 Syre O 16.00

9 Fluor F 19.00

10 Neon Ne 20.18

3

11 Natrium Na 23.00

12 Magnesium Mg 24.31

13 Aluminium Al 26.98

14 Kisel Si 28.09

15 Fosfor P 30.97

16 Svavel S 32.07

17 Klor Cl 35.45

18 Argon Ar 39.95

4

19 Kalium K 39.10

20 Kalcium Ca 40.08

21 Skandium Sc 44.96

22 Titan Ti 47.89

23 Vanadin V 50.94

24 Krom Cr 52.00

25 Mangan Mn 54.94

26 Järn Fe 55.85

27 Kobolt Co 58.93

28 Nickel Ni 58.69

29 Koppar Cu 63.55

30 Zink Zn 65.39

31 Gallium Ga 69.72

32 Germanium Ge 72.61

33 Arsenik 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 Strontium Sr 87.62

39 Yttrium Y 88.91

40 Zirkonium Zr 91.22

41 Niob Nb 92.91

42 Molybden Mo 95.94

43 Teknetium Tc [99]

44 Rutenium Ru 101.07

45 Rodium Rh 102.91

46 Palladium Pd 106.42

47 Silver Ag 107.87

48 Kadmium Cd 112.41

49 Indium In 114.82

50 Tenn 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 Barium Ba 137.33

57-71 Lantanoider *

72 Hafnium Hf 178.49

73 Tantal Ta 180.95

74 Volfram W 183.84

75 Rhenium Re 186.21

76 Osmium Os 190.23

77 Iridium Ir 192.22

78 Platina Pt 195.08

79 Guld Au 196.97

80 Kvicksilver Hg 200.59

81 Tallium Tl 204.38

82 Bly Pb 207.21

83 Vismut 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 Aktinoider **

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 Röntgenium Rg [281]

112 Copernicium Cn [285]

113 Nihonium Nh [286]

114 Flerovium Fl [289]

115 Moscovium Mc [289]

116 Livermorium Lv [293]

117 Tenness Ts [294]

118 Oganesson Og [294]

*

57 Lantan La 138.91

58 Cerium Ce 140.12

59 Praseodym Pr 140.91

60 Neodym Nd 144.24

61 Prometium 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 Tulium Tm 168.93

70 Ytterbium Yb 173.04

71 Lutetium Lu 174.97

**

89 Aktinium Ac [227]

90 Torium 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 Californium Cf [252]

99 Einsteinium Es [252]

100 Fermium Fm [257]

101 Mendelevium Md [256]

102 Nobelium No [259]

103 Lawrencium Lr [260]