Question

We know that to find the group of an element{above 2} we should add 10 to the number of valence electrons but this is not coming when in the case of BROMINE whos electronic configuration is 2,8,8,8,1 and if we add 10 + 1 it becomes 11 but BROMINE belongs to the 17th group. Please tell me how to find this

Answer 1

Bhai electronic configuration is wrong the right is 2,8,8,32,.......

It will help u