Question

By considering the first correlation complete
the second correlation,
Group 1: Alkali metals:
: Halogensi,​

Answer 1

Answer:

Group 1: Alkali Metals : Valency : 1 : Valence Electrons : 1.

Group 2: Alkaline Earth Metals : Valency : 2 : Valence Electrons : 2.

Group 17 : Halogens : Valency : 1 : Valence Electrons : 7.

Group 18 : Noble Gases : Valency 0 : Valence Electrons : 8.