# What is the Lewis dot structure NH_4NO_2 and NH_4NO_3?

Apr 24, 2016

These are ionic species, i.e. $\text{ammonium } N {H}_{4}^{+}$, $\text{nitrite } N {O}_{2}^{-} ,$ and nitrate $N {O}_{3}^{-}$.

#### Explanation:

Ammonium ion, 8 valence electrons, $4 \times N - H$ bonds nitrogen is quaternized, 4 electrons, and a formal cation.

Nitrite ion, 18 valence electrons, ""^(-)O-N=O, 7 valence electrons around the oxygen, 5 around the (neutral) nitrogen, and 6 around the (neutral) oxygen.

Nitrate ion, $O = {N}^{+} {\left(- {O}^{-}\right)}_{2}$, 4 valence electrons around quaternized $N$, hence a formal cation, 6 around the neutral oxygen,and 7 around the 2 anionic oxygens.

Obviously the formal charge is delocalized in all of these examples.