Question

the electronic configuration of Magnisium is (2,8,2). what would be it's valence​

Answer 1

Hey there!

I guess you're asking about the valency

So Valency is defined as combining power of an element with other atom to form chemical bond.

Valency refers to electron in outer shell of an atom.

As the electrons in the outermost shell is 2 hence, the valency of magnesium is 2

Since the nearest noble gas to magnesium is neon with electronic configuration of [2,8], to achieve this stable electronic configuration Mg can lose 2 valence electrons, hence its valency is 2 + .

Hope it helps! :)

Answer 2

Answer will be 2

Valency of magnesium is +2