Commonality in the Origin and the Manifestation in the Real World of Electronegativity and Hardness Figure 4. Comparative study of the dipole moments of some heteronuclear diatomics computed using hardness and electronegativity vis-à-vis their spectroscopic counterparts Figure 5. Comparative plot of the inter nuclear bond distances of hetero nuclear diatomics computed through electronegativity vis-à-vis their experimental counterparts 95