Horvath Practice Problems 124

Horvath Practice Problems 124 - in the compound. As a...

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32 REVIEW OF MOLECULAR GEOMETRY We will be talking about the nature of intermolecular forces. These forces are determined and in f uenced by the three dimen- sional geometry of the molecule. Thus we need to review the molecular geometry material from the F rst semester. Charge Distribution in Covalent Compounds We know that in ionic compounds electrons move entirely from one atom to another and the bond is formed due to the mutual attraction of the anion and the cation. For covalent compounds the electron density is shared. How- ever, it is not necessarily shared evenly between all the atoms
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Unformatted text preview: in the compound. As a result some atoms in the compound carry what are called partial charges. One way to characterize the charge distribution in compounds and polyatomic ions is to introduce the idea of electronegativity , . Electronegativity is a measure of the ability of an atom in a compound to attract electron density to itself. See Figs. 9.8, 9.9 and 9.11 of Kotz&Treichel REVIEW OF MOLECULAR GEOMETRY 123...
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This document was uploaded on 11/01/2011 for the course CHM 2046 at University of Florida.

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