Question

define valency. write electron configuration of n (atomic number 7) and Al (atomic number 13). also calculate the valency of N and Al.

Answer 1

Define Valency

In chemistry, the valence or valency of an element is a measure of its combining power with other atoms when it forms chemical compounds or molecules.

hope this will help you.

Answer 2

Explanation:

In chemistry, the valence or valency of an element is a measure of its combining power with other atoms when it forms chemical compounds or molecules.

N 2,5

Al 2,8,3.