* Nitrogen (N): Makes up about 78% of the air by volume.

* Oxygen (O): Makes up about 21% of the air by volume.

* Argon (Ar): Makes up about 0.93% of the air by volume.

There are also trace amounts of other elements in the air, such as:

* Carbon dioxide (CO2): While technically a compound, it contains the element carbon.

* Neon (Ne)

* Helium (He)

* Krypton (Kr)

* Xenon (Xe)

* Hydrogen (H)

* Ozone (O3): While technically a compound, it contains the element oxygen.

These elements are all found in their gaseous state under normal atmospheric conditions.