500
The earth's atmosphere is made out of 100% chemical gases, there is 78% nitrogen(N2), 21% oxygen(O2) and 1% with different gases like:
H2O(water steam),Co2(carbon dioxide),Noble gases.
List all the noble gases in our atmosphere and there equation.
1. Helium(He)
2. Neon(Ne)
3. Argon(Ar)
4. Krypton(Kr)
5. Xenon(Xe)
6. Radon(Rn)