What is the Lewis dot structure #NH_4NO_2# and #NH_4NO_3#?

1 Answer
Apr 24, 2016

Answer:

These are ionic species, i.e. #"ammonium "NH_4^+#, #"nitrite "NO_2^(-),# and nitrate #NO_3^-#.

Explanation:

Ammonium ion, 8 valence electrons, #4xxN-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^+(-O^-)_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.