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NF3 is polar because, according to its Lewis structure, the molecule forms a pyramidal shape. The electronegativity of the fluorine atoms is stronger than that of the nitrogen atom, therefore causing those bonds to be polar bonds. However, if the nitrogen atom were pulled on equally from opposite directions (i.e. if there were a fourth fluorine atom) the molecule would, in fact, be non-polar. Therefore, this molecule is polar covalent, containing electrical charges.

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15y ago

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