Is neon usually found alone?
When neon was first discovered it was found with a mixture of gases. The mixture was called argon.
Neon has a full shell of valence electrons and no charge, therefore it does not react with things. Nitrogen and Oxygen do react with things. Also, nitrogen and oxygen are diatomics. Meaning they're found as O2 or N2 in nature, not O or N alone. Neon is not diatomic. It can be found as Ne alone in nature.