Question

what is the electronic configuration of bromine and cobalt

Pls I will thanks for correct answer​

Answer 1

Answer:

the electronic configuration of bromine is 2:8:18:7

and cobalt is 2:8:8:8:1.

Answer 2

bromine=[Ar] 4s² 3d¹⁰ 4p⁵

cobalt=[Ar] 3d7 4s2