| s-block
p-block |
2
He
4.00
|
|
3
Li
6.94
|
4
Be
9.01
|
|
5
B
10.8
|
6
C
12.0
|
7
N
14.0
|
8
O
16.0
|
9
F
19.0
|
10
Ne
20.2
|
|
11
Na
23.0
|
12
Mg
24.3
|
d-block |
13
Al
27.0
|
14
Si
28.1
|
15
P
31.0
|
16
S
32.1
|
17
Cl
35.5
|
18
Ar
40.0
|
|
19
K
39.1
|
20
Ca
40.1
|
21
Sc
45.0
|
22
Ti
47.9
|
23
V
50.9
|
24
Cr
52.0
|
25
Mn
54.9
|
26
Fe
55.8
|
27
Co
58.9
|
28
Ni
58.7
|
29
Cu
63.5
|
30
Zn
65.4
|
31
Ga
69.7
|
32
Ge
72.6
|
33
As
74.9
|
34
Se
79.0
|
35
Br
79.9
|
36
Kr
83.8
|
|
37
Rb
85.5
|
38
Sr
87.6
|
39
Y
88.9
|
40
Zr
91.2
|
41
Nb
92.9
|
42
Mo
95.9
|
43
Tc
98
|
44
Ru
101
|
45
Rh
103
|
46
Pd
106
|
47
Ag
108
|
48
Cd
112
|
49
In
115
|
50
Sn
119
|
51
Sb
122
|
52
Te
128
|
53
I
127
|
54
Xe
131
|
|
55
Cs
133
|
56
Ba
137
|
57
La
139
|
72
Hf
178
|
73
Ta
181
|
74
W
184
|
75
Re
186
|
76
Os
190
|
77
Ir
192
|
78
Pt
195
|
79
Au
197
|
80
Hg
201
|
81
Tl
204
|
82
Pb
207
|
83
Bi
209
|
84
Po
210
|
85
At
210
|
86
Rn
222
|
|
87
Fr
223
|
88
Ra
226
|
89
Ac
227
|
104
Ku
|
105
Ha
|
106
|
