Question

An element has 2 electron in N shell what is its valency

Answer 1

Answer:

Explanation:

K. M. N

2. 8. 2

Since in the valence shell there are on only 2 elections it’s valency is 2

Formula:

If the valence shell has 3 or less than 3 electrons the no of valence electrons becomes the valency

If the valence shell has more than 4 electrons then (8-valence electrons) gives the valency