Waiting for answer This question has not been answered yet. You can hire a professional tutor to get the answer.
Valency of bromine?
valency of bromine=1
bromine is from halogen group hence it has 7 valance electrons in its outermost shell it can have 1 more electron as it is easy to gain 1 electron than to lose 7 electrons so,valency of bromine is 1.