Ia

IIa

IIIb

IVb

Vb

VIb

VIIb

VIIIb

Ib

IIb

IIIa

IVa

Va

VIa

VIIa

VIIIa

H
1

He
2

Li
3

Be
4

B
5

C
6

N
7

O
8

F
9

Ne
10

Na
11

Mg
12

Al
13

Si
14

P
15

S
16

Cl
17

Ar
18

K
19

Ca
20

Sc
21

Ti
22

V
23

Cr
24

Mn
25

Fe
26

Co
27

Ni
28

Cu
29

Zn
30

Ga
31

Ge
32

As
33

Se
34

Br
35

Kr
36

Rb
37

Sr
38

Y
39

Zr
49

Nb
41

Mo
42

Tc
43

Ru
44

Rh
45

Pd
46

Ag
47

Cd
48

In
49

Sn
50

Sb
51

Te
52

I
53

Xe
54

Cs
55

Ba
56

La
57

Hf
72

Ta
73

W
74

Re
75

Os
76

Ir
77

Pt
78

Au
79

Hg
80

Tl
81

Pb
82

Bi
83

Po
84

At
85

Rn
86

Fr
87

Ra
88

Ac
89

Rf
104

Db
105

Sg
106

Bh
107

Hs
108

Mt
109

Lantanoidid

Ce
58

Pr
59

Nd
60

Pm
61

Sm
62

Eu
63

Gd
64

Tb
65

Dy
66

Ho
67

Er
68

Tm
69

Yb
70

Lu
71

Aktinoidid

Th
90

Pa
91

U
92

Np
93

Pu
94

Am
95

Cm
96

Bk
97

Cf
98

Es
99

Fm
100

Md
101

No
102

Lr
103