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Ionization Energies, Electronegativity, Polar Bonds, and Partial Charges

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Ronald J. Gillespie

Department of Chemistry, McMaster University, Hamilton, ON L8S 4M1, Canada

James N. Spencer and Richard S. Moog

Department of Chemistry, Franklin and Marshall College, Lancaster, PA 17604-3003

J. Chem. Educ., 1996, 73 (7), p 627

DOI: 10.1021/ed073p627

Publication Date (Web): July 1, 1996

Abstract

Ionization energies obtained experimentally from photoelectron spectroscopy provide a convenient and simple method for obtaining electronegativity values that correlate well with the standard methods of Pauling, Allred, and Rochow. This approach to obtaining electronegativities can lead to deeper insights than are typically possible with the traditional formulations. A method for calculating approximate atomic charges for polar molecules is also presented.

Keywords (Audience):

First-Year Undergraduate / General

Keywords (Feature):

Demystifying Introductory Chemistry

Keywords (Subject):

Covalent Bonding

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Received: August 03, 2009

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Ionization Energies, Electronegativity, Polar Bonds, and Partial Charges

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An Approach to Reaction Thermodynamics through Enthalpies, Entropies, and Free Energies of Atomization

Electron Configurations from Experiment

Bonding and Molecular Geometry without Orbitals - The Electron Domain Model

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