# Does resonance help radical stability?

Mar 1, 2017

Absolutely!

#### Explanation:

Recall that radical stability follows the trend:

From left to right we have a primary (${1}^{\circ}$) radical, a secondary (${2}^{\circ}$) radical, a tertiary (${3}^{\circ}$) radical, an allylic radical, and a benzylic radical.

Radicals have an $s {p}^{2}$ configuration in which the lone electron occupies the unhybridized p orbital. $s {p}^{2}$ hybridization allows for pi bonding.