Gases

What is chemistry?

Chemistry is physical science which studies about composition, structure, properties of substance.
the amount of composition of gases in air.

Nitrogen - 78.08 %

Oxygen - 20.95 %

Carbondioxidde - 0.038 %

Argon - 0.93 %

Xenon - 0.000009 %

Neon - 0.0018

Hydrogen - 0.00005%

Helium - 0.0005 %

Krypton - 0.0001 %