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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.