Question

formal charge on ozone

Answer 1

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Oxygen has six Valence Electrons, concentrate on the diagram.

Let us examine the resonating structure.

**Left=> six electrons- six assigned = 0
Formal charge is 0 on left oxygen.
** Centre =>
six electrons- Five assigned= 1 formal charge
** Right=>
six electrons- 7 assigned= -1 formal charge

### the sum of formal charge in the molecule= 0+1+(-1)=0

O3 molecule has zero formal charge.