Question

4. An element which has atomic number 7.
Find out in which period and group is it placed?
Write the electronic configuration of it.
Write it's valancy and valance electrns.
hinumants and demerits​

Answer 1

Answer:

nitrogen

Explanation:

group:5(A)group or 15 group,

period:2nd period,

electronic configuration:1s2,2s2,2p3,

valency:3,

Valence electrons:5.

Answer 2

Answer:

Nitrogen

Electronic configuration -- K shell - 2 , L shell - 5

Valency -- 3

Valence electrons -- 5