A molecule has four unshared electrons on the central atom and four chlorine atoms bonded to the central atom. What is its molecular shape and its hybridization?

Hybridization is the chemist's attempt to explain the observed molecular shape by constructing HAOs with the appropriate inter orbital angels. A molecule adopts its most stable shape all by itself, then the chemist calculated what HAOs correspond to the shape. There is a One-to One correspondence between shape and hybridization.