Question

What is bromine's electron configuration?

Answer 1

`Br = 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^5`

`Br = [Ar] 4s^2 3d^10 4p^5`

Explanation:

Bromine is in the `4th` energy level, `p` block, `5th` column, this means that the electron configuration will end `4p^5`

`Br = 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^5`

`Br = [Ar] 4s^2 3d^10 4p^5`