Question

Find the valency of chlorine and nitrogen using their atomic numbers of valence electrons.

Answer 1

Answer:

chlorine -1 and nitrogen -1

Explanation:

atomic number of chlorine is 17 so its electronic configuration is 2,8,7

Therefore valence electrons are 1 and valency is -1

For nitrogen-

atomic number is 7

electronic configuration becomes 2,5

no. of valence electrons are 2

hence valency is 2

hope you got your answer