# Why is the ozone molecule non-polar?

In fact a formal representation of the ozone molecule would show bond polarity, i.e. charge separation. This is illustrated by simple Lewis structures, electron counting schemes, of the trioxygen molecule, which depict a $O = {O}^{+} - {O}^{-}$, which formal representation suggests a bent, neutral structure, a $\angle O - O - O$ of approx. ${120}^{\circ}$, which are confirmed experimentally.
Of course the terminal oxygen atoms of the molecule are equivalent experimentally, which is also strongly suggested by the Lewis structure: there is little difference between $O = {O}^{+} - {O}^{-}$, and ""^(-)O-O^(+)=O.