A New Method of Determining Electronegativity from Other Atomic Properties

Walter Gordy
Phys. Rev. 69, 604 – Published 1 June 1946
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Abstract

The relation, x=0.31n+1r+0.50, where x represents the electronegativity of an atom according to Pauling's revised scale, n the number of electrons in its incompletely filled (valence) shells, and r its single bond covalent radius measured in Angstroms, has been found valid for all elements having x values available for comparison, except for Ag, Au, and Cu. This equation is used to extend the electronegativity scale to include a total of fifty-two elements. A chart is constructed to demonstrate the systematic relation of the values to the periodic table. Beginning with the definition of the electronegativity of a neutral atom in a stable molecule as the potential at a distance r (covalent radius) from its nucleus which is caused by the nuclear charge effective at that distance, a simple theoretical justification is offered for the existence of a linear relation between x and (n+1)r. This relation, like Mulliken's, provides an "absolute" scale of electronegativity values.

  • Received 18 March 1946

DOI:https://doi.org/10.1103/PhysRev.69.604

©1946 American Physical Society

Authors & Affiliations

Walter Gordy

  • Department of Physics, Duke University, Durham, North Carolina

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Issue

Vol. 69, Iss. 11-12 — June 1946

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