Ar

ARGON

Definition ;From "argan" or inactive. the most abundant of noble gases. adn third of the most prevalent gas in the earth's atmosphere. its industrial forte is in welding, the inert atmosphere it provides will not burn the welded metals.

Discovery :1894 by Sir William Ramsey and John William Strutt rayleigh of britain.

Uses :light bulbs, arc welding, flourescent light

Group of Elements :Noble Gas(gas)

Atomic Weight :39.948

Oxidation State :0

Melting Point :-189.2

Boiling Point :-185.7

Density :1.65 g/cm3