What is the Electronic Configuration of a Free Nitrogen Atom?

[Kelly09]

here is my problem. Galium Nitride is an Ionic Compound. Work out the electron arrangement of the Nitrogen ion

 

[sjb-2812]

First off perhaps. What are the ion pairs involved in this compound?

 

[Kelly09]

Galium has 3 positive ions. So i guess Nitrogen have 3 negative ions and therefore gaining 3 electrons.

 

[sjb-2812]

OK, so what is the electronic configuration of a free nitrogen atom?