The Periodic Table - Transition Metals Removed
The group number denotes the number of valence electrons in the atom
|
1A
|
|
|
|
|
|
|
8A
|
1
H
1.01
|
2A
|
3A |
4A |
5A |
6A |
7A |
2
He
4.00
|
3
Li
6.94
|
4
Be
9.01
|
5
B
10.81
|
6
C
12.01
|
7
N
14.01
|
8
O
16.00
|
9
F
19.00
|
10
Ne
20.18
|
11
Na
22.99
|
12
Mg
24.31
|
13
Al
26.98
|
14
Si
28.09
|
15
P
30.97
|
16
S
32.06
|
17
Cl
35.45
|
18
Ar
39.95
|
19
K
39.10
|
20
Ca
40.08
|
31
Ga
69.72
|
32
Ge
72.59
|
33
As
74.92
|
34
Se
78.96
|
35
Br
79.90
|
36
Kr
83.80
|
37
Rb
85.47
|
38
Sr
87.62
|
49
In
114.82
|
50
Sn
118.69
|
51
Sb
121.75
|
52
Te
127.60
|
53
I
126.90
|
54
Xe
131.30
|
55
Cs
132.91
|
56
Ba
137.34
|
81
Tl
204.37
|
82
Pb
207.2
|
83
Bi
208.96
|
84
Po
(209)
|
85
At
(210)
|
86
Rn
(222)
|
87
Fr
(223)
|
88
Ra
226.03
|
|