Noble gas

Noble gases, gas ke ek roup hae. Ii sab element periodic table ke group 18  me hae. Ii sab gas duusra element se jaada kar ke react nai hoe hae kaahe ki iske bahaar waala cell electron se bharaa rahe hae. Chhe noble gas hae:

 helium
 neon
 argon
 krypton
 xenon
 radon

Ii sab gas hawaa me mile hae aur puura hawaa ke 0.96%  hae.