Chapter 6, Problem 62QRT

Interpretation Introduction

Interpretation:

The resonance forms for two nitrogen radical of $N{O}^{2-}and{N}_2^{3-}$ have to be written.

Concept Introduction:

According to the concept of resonance, when a single Lewis structure cannot describe a molecule accurately, a number of structures with same energy, position of nuclei, bonding and non-bonding pair of electrons are taken as the canonical structures of the hybrid which describes the molecule accurately.

The formula for the formal charge can be written as

  $\text{Formal}\text{charge=}\text{Valence}\text{electrons-lone}\text{pair}\text{electrons}\text{-}\frac{\text{Bonding}\text{electrons}}{\text{2}}$