Question

Chlorine show similarities in bromine and iodine of the modern periodic table

Answer 1

Chlorine shows similarities in bromine and iodine of modern periodic table because they all are 17th group elements.Elements that lies in the same groups shows similarities with each other.This is because elements of a perticular group have same valency. Here the valency of chlorine,bromine and iodine have same valency,i.e, 1.