You are probably thinking of carbon dioxide (CO2) which is found is relatively small amounts in air, at least compared to nitrogen and oxygen, but there aren't compounds as they contain only a single element.
Carbon Dioxide.
carbon dioxide.
Air is a mixture of mainly Nitrogen and Oxygen, the gases in air are not chemically reacted.
Carbon is in most of the chemicals in living things and is in the air in carbon dioxide gas.
The old name of hydrogen gas is "inflammable air."
The compound name for NHO is ammonia, which is a colorless gas with a characteristic pungent smell.
The gas you breathe in from the air is called oxygen.
Carbon dioxide gas
Argon is an inert gas, and an inert gas does not want to combine with anything else. There is no compound name for a lithium and argon compound because there is no lithium and argon compound.
There is no gas by the name of "air" because air is really combination of several gasses.
The compound formula CH4 is called methane. It is the simplest alkane and the main component of natural gas.
The covalent compound O2 is called oxygen gas.