Is Nitrate ( $NO_3^-$ ) polar or nonpolar? Why?

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Answer 1 · 2017-02-13T23:16:06

Polarity is not a property we can properly attribute to ionic species.

Why not? Because ionic species are formally charged, and the question of polarity, charge separation, is already a done deal.

The Lewis representation of nitrate ion is $"O=N"^(+)"("-"O"^(-)")"_2$

Is Nitrate (NO_3^-NO_3^-) polar or nonpolar? Why?