Radicals

[305174946]

When determining hybridization, do radicals count as regions of electron density?

[Manu Vohra 1L]

single electrons found as radicals occupy an unhybridized p-orbital. That said, the single electron is still counted as a region of electron density so I think it is still considered when determining hybridization.

[Justin Haggard 1E]

Yes, they do.

Single bonds, multiple bonds (double, triple), radicals, and lone pairs each count as one region of electron density when determining hybridization.

[g orloff 1J]

Radicals do count as a region of electron density when determining hybridization.