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1
H
3
Li
11
Na
55
Cs
87
Fr
4
Be
12
Mg
56
Ba
88
Ra
72
Hf
73
Ta
74
W
104
Rf
105
Db
106
Sg
*
**
75
Re
76
Os
77
Ir
78
Pt
79
Au
80
Hg
107
Bh
108
Hs
109
Mt
110
Ds
111
Rg
112
Cn
2
He
10
Ne
18
Ar
86
Rn
118
Og
5
B
6
C
7
N
8
O
9
F
13
Al
14
Si
15
P
16
S
17
Cl
19
K
20
Ca
21
Sc
22
Ti
23
V
24
Cr
25
Mn
26
Fe
27
Co
28
Ni
29
Cu
30
Zn
36
Kr
31
Ga
32
Ge
33
As
34
Se
35
Br
81
Tl
82
Pb
83
Bi
84
Po
85
At
113
Nh
114
Fl
115
Mc
116
Lv
117
Ts
57
La
89
Ac
58
Ce
59
Pr
60
Nd
61
Pm
62
Sm
90
Th
91
Pa
92
U
93
Np
94
Pu
63
Eu
95
Am
64
Gd
96
Cm
65
Tb
97
Bk
66
Dy
67
Ho
99
Es
68
Er
100
Fm
69
Tm
101
Md
70
Yb
102
No
71
Lu
103
Lr
98
Cf
* Lanthanides
** Actinides
37
Rb
38
Sr
39
Y
40
Zr
41
Nb
42
Mo
43
Tc
44
Ru
45
Rh
46
Pd
47
Ag
48
Cd
54
Xe
49
In
50
Sn
51
Sb
52
Te
53
I
Group
III
IV
V
VI
VII
VIII
I
II
2
3
4
5
6
7
1
Period
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