When atoms with differing electronegativity are bonded together, the electrons may spend more time around one atom than the other, creating an unequal distribution of charge and a polar bond. ... The vector sum of the dipole moments determines the polarity of a molecule.
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Answer:
When atoms with differing electronegativity are bonded together, the electrons may spend more time around one atom than the other, creating an unequal distribution of charge and a polar bond. ... The vector sum of the dipole moments determines the polarity of a molecule.