Electron Promotion

[raina_bandekar_1G]

I was wondering how electron promotion worked in terms of hybridization. Could someone explain this concept to me?

[Emily Discussion 3F]

Electron promotion is necessary for orbitals to hybridize. Electron promotion is when an electron moves from a low to a high energy orbital. In order for s and p orbitals to hybridize an s electron must be pushed up to the p orbital and then they can form a hybridized orbital, so electron promotion is necessary for the hybridization.