What type of orbitals overlap to provide stability to the tert-butyl radical by hyperconjugation?

Question

Quizplus · Accepted Answer

Hyperconjugation in the tert-butyl radical involves the overlap of the 2p atomic orbital of the tertiary carbon atom (where the radical is located) with the σ molecular orbital of a C−H bond in one of the methyl groups. This overlap helps to delocalize the unpaired electron over the molecule, providing stability to the radical.

What Type of Orbitals Overlap to Provide Stability to the Tert-Butyl