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Unformatted text preview: an electric dipole moment . The electric dipole moment is a vector quantity, and is represented by the symbol . In the case of HF, will lie along the direction of the H-F bond: The strength of the electric dipole moment across a bond will be proportional to the difference in electronegativity of the two atoms forming the bond. There are a number of ways to quantify atom electronegativities. Below are a few numbers based on an approach by Linus Pauling. H: 2.1 Li: 1.0 Be: 1.5 B: 2.0 C: 2.5 N: 3.0 O:3.5 F: 4.0 Na: 0.9 Mg: 1.2 Al: 1.5 S: 1.8 P: 2.1 S: 2.5 Cl: 3.0 The general trend of Electronegativity in the periodic table is...
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