# What is the ground state electron configuration for Zn ?

Jul 17, 2016

$1 {s}^{2} , 2 {s}^{2} , 2 {p}^{6} , 3 {s}^{2} , 3 {p}^{6} , 4 {s}^{2} , 3 {d}^{10}$

#### Explanation:

The atom is electrically neutral. Therefore, the number of protons is equal to the number of electrons.

"_30^65Zn

The zinc atom has 30 protons $\implies$ 30 electrons.

$1 {s}^{2} , 2 {s}^{2} , 2 {p}^{6} , 3 {s}^{2} , 3 {p}^{6} , 4 {s}^{2} , 3 {d}^{10}$