Write the electronic configuration of `Na^(+)` and `Cl^(-)`

Explanation

Electronic Configuration of `Na^(+)` is `1s^(2) 2s^(2) 2p^(6)` and `Cl^(-)` is `1s^(2) 2s^(2) 2p^(6) 3s^(2) 3p^(6)`.