What happens when a nitrogen atom loses two electrons?

When any atom loses two charged particles, it becomes an ion, with a charge opposite of the particles it lost. Ions will attempt to join up with other ions in ionic bonds, held together by the opposite charges of the atoms.

Since losing and gaining has to do with the ions, we know the answer! It would become a ion, specifically a cation, and gain a positive charge because it lost 2 electrons.