Chapter 1, Problem 1.17P

Interpretation Introduction

Interpretation:

The formal charge on each atom in the oxime molecule shown is to be determined assuming each atom has a filled valence shell.

Concept introduction:

Formal charge (FC) on an atom is the difference between its group number and the number of electrons it possesses. The number of electrons on the valence shell of an atom in a molecule or a molecular ion is the sum of half the electrons in the bonds it has formed and all the electrons in lone pairs that it may have. In other words, FC can be calculated using the formula $\text{FC = Gr}\text{. No}\text{. - (\#lone pair electrons + }\frac{\text{1}}{\text{2}}\times \text{bonding electrons)}$.