Chapter 3, Problem 8CTQ

Interpretation Introduction

Interpretation: The blank that is related to overlap of orbitals in $s{p}^2$ hybrid orbital should be filled.

Concept introduction: Two or more of orbitals undergo redistributions of their different energies so as to form mathematically averaged orbitals in terms of energy although they may differ in shape and orientation. This phenomenon is referred as hybridization.

The energy and orientation of the new hybrid orbital depends upon by the kind and number of orbitals used in the hybridization. The new hybrid orbitals are always equal in number to number of atomic orbitals that combine.