Theory of the chemical bond. V. Bond polarities of post-transition hydrides

Abstract
A classical derivation of a dipole moment model derived earlier by a quantum mechanical implicit perturbation technique is given. This model is used to determine the bond polarities of the post transition (Groups IIIA–VIIA) hydrides. The polarity measures the extent of charge transfer in a bond. Polarities of alkali halides and posttransition hydrides are used to illustrate the gradual change in bond polarities with nuclear charge across the periodic table.