Question

valency of magnesium ion​

Answer 1

Atomic number of magnesium is 12 and it's electronic configuration is 2,8,2. Valency is number of electrons gain or loss to achieve noble gas configuration I.e. ... Since magnesium has 2 electrons in it's outermost shell, hence it's valency is 2 I.e.

Answer 2

Explanation:

Atomic number of magnesium is 12 and it's electronic configuration is 2,8,2. Valency is number of electrons gain or loss to achieve noble gas configuration I.e. ... Since magnesium has 2 electrons in it's outermost shell, hence it's valency