Answer
The resonance form of the free radical is shown in the attached image.
Work Step by Step
The resonance form of the free radical is shown in the attached image. The free electron exchanges its place with the double bond.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.