Abstract
An extrapolation method is proposed for an approximative evaluation of covalent bonding powers of some elements from their electronegativity values. Using these values in the bond energy equation, obtained from the principle of electronegativity equalization [3], bond energies can be calculated with an accuracy, comparable with the one, obtained by Evans and Huheey [1], who included an electrostatic attraction energy term in the calculation of bond energies. Alterations in the covalent bonding power (electronegativity) of some elements in function of the nature of the bonding partner are demonstrated. The disagreement between the Pauling and Pearson rules for the description of heteropolar bond stability is discussed.
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