High School

An organic compound contains a single nitrogen atom. The only other atoms in the compound are hydrogens and carbons. The nitrogen atom is bonded to three other atoms and has one lone pair. The valence shell electrons for all the carbon and nitrogen atoms in the compound are in [tex]sp^3[/tex] hybridization states.

What is the formal charge on the nitrogen atom?

A. −4
B. −2
C. +1
D. +2
E. No charge

Answer :

The formal charge on the nitrogen atom in this compound is zero (no charge).

The formal charge on the nitrogen atom can be calculated using the formula:

Formal charge = Valence electrons - Lone pair electrons - Bonding electrons/2

For nitrogen with three bonded atoms and one lone pair, we have:

Valence electrons = 5

Lone pair electrons = 2

Bonding electrons = 6 (3 bonds x 2 electrons per bond)

Formal charge = 5 - 2 - (6/2) = 5 - 2 - 3 = 0

Therefore, the formal charge on the nitrogen atom in this compound is zero (no charge).

To learn more about formal charge, here

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