Question

What are the similarities in properties of elements in halogen family

Answer 1

valency of all elements is -1 , all are highly electron gainer.

Answer 2

Heyy..!! 1) Both hydrogen and halogens require one electron to complete their valence shell. 2) Both hydrogen and halogens are non-metals (Except iodine which has partial metallic character). 3) Both hydrogen and Halogens acts as negative ions when combined with metals.