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1
IA
  18
VIIIA
H
1
2
IIA
  13
IIIA
14
IVA
15
VA
16
VIA
17
VIIA
He
2
Li
3
Be
4
  B
5
C
6
N
7
O
8
F
9
Ne
10
Na
11
Mg
12
3
IIIB
4
IVB
5
VB
6
VIB
7
VIIB
8
----
9
VIII
10
----
11
IB
12
IIB
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
40
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
57-
71
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
89-
103
Rf
104
Db
105
 
   
Lanthanides La
57
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
 
Actinides Ac
89
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
 
Note: X or Xx = Solid, X or Xx = Liquid, and X or Xx = Gas around room temperature (25 °C; 78 °F) and 1 atmosphere.