# Question e7bac

Mar 1, 2016

The electron configuration of $\text{N}$ is $\text{[He]} \textcolor{w h i t e}{l} 2 {s}^{2} 2 {p}^{3}$.

#### Explanation:

Nitrogen, $\text{N}$, is located in Group 15, Row 2 of the Periodic Table.

It has atomic number $7$.

This tells you that a neutral nitrogen atom has a total of $7$ electrons.

If you add electrons according to the Aufbau Principle, you get the electron configuration

$\text{N: } 1 {s}^{2} \textcolor{w h i t e}{l} 2 {s}^{2} 2 {p}^{3}$

If you use the noble gas shorthand notation, you will get from

"N: " overbrace(1s^2)^(["He"]) 2s^2 2p^3

to

"N: " ["He"]color(white)(l) 2s^2 2p^3#