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3.1.3 Bonding (Forces Between Molecules (Intermolecular Forces) (permanent…
3.1.3 Bonding
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Bond Polarity
electronegativity: the measure of the ability of an atom to attract the pair of electrons in a covalent bond
the electron distribution in a covalent bond between elements with different electronegativities will be unsymmetrical; produces a polar covalent bond and may cause molecule to have a permanent dipole
δ− to represent partial negative charge, δ+ to represent partial negative charge
some molecules with polar bonds do not have a permanent dipole as the molecule is symmetrical, so the dipoles pull equal and cancel out, leaving no overall dipole
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