Element
Hydrogen
Helium
Lithium
2
2
2,
2, 2
23.
5
6
7 ㅋ
Boron
I Carbon
Nitrages
Oxygen
Eluorine
Neoa
Sodium
Magnesium
Aluminium
g
lo
2, 5
26.
27
2,8
2,81
2.8.2
2,8, 3
12
13 valency
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