Definition: A property of an atom which increases with its tendency to attract the electrons of a bond.
Examples: The chlorine atom has a higher electronegativity than the hydrogen atom, so the bonding electrons will be closer to the Cl than to the H in the HCl molecule.
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Electronegativity Definition
Chemistry Glossary Definition of Electronegativity
By Anne Marie Helmenstine, Ph.D., About.com Guide
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