Question

if Z =1 what would be the valency of the element also name the element​

Answer 1

Answer:

Hydrogen has atoms number= 1

and has valency 1

Answer 2

Answer:

If z = 3, i.e., atomic number is 3. Its electronic configuration is 2, 1. Hence, the valency of the element is 1 (since the outermost shell has only one electron). Then element is lithium.