Question

Flourine ,chlorine nd bromine are lut in one group on the basics of their similar properties whats are tohse similar properties

Answer 1

All are halides of group 17 and their electronegativity is high..

Answer 2

1. valency = 1
2. valance elctrons = 7
3. electronegative index
4. they are non metals
5. they form ionic compounds

hope my answer helps you