Question

write down the electronic configuration,valence cell,valence shell and valency at the following element in a tabular form
1.nitrogen
2.neon
3.aluminium
4.calcium
5.magnesium

Answer 1

1)2, 5

2)2, 8

3)2, 8, 5

4)2, 8, 8, 2

5)2, 8, 1