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QUESTION
How many resonance structures are there for NO2?
There are two major structures for ##"NO"_2##.
You must first draw the Lewis structure for ##"NO"_2##.
You find that you can draw two Lewis structures.
However, there are two even better Lewis structures.
The ##"N"## atom has an unpaired electron and a positive charge.
Every atom has a formal charge of zero.
These are the two major resonance contributors to ##"NO"_2##.
