Complexes of d- and f-block metals can be described in terms of hybridization schemes, each associated with a particular shape. Bearing in mind that the number of atomic orbitals hybridized must be the same as the number of hybrid orbitals produced, match the hybrid orbitals sp²d, sp³d³, and sp³d³f to the following shapes:

(a) Pentagonal bipyramidal;

(b) Cubic;

(c) Square planar.