Question

how many electrons will nitrogen need to gain or lose to be left with a full outer shell of valence electrons? n gain 1 lose 2 gain 3 lose 4 gain 5 lose 6 gain 7 lose 8

Explanation:

Nitrogen has 5 valence electrons. A full outer - shell of valence electrons has 8 electrons. To achieve a full outer - shell, nitrogen needs to gain 3 electrons.

Answer:

C. gain 3