Discovered by Lord Rayleigh (London) and Sir William Ramsay
(Bristol), UK
Remarks
Colorless, odorless gas comprising 1 percent of the atmosphere. Used as
inert atmosphere in lamps and high temperature metallurgy. Found in potassium-bearing minerals as a trapped gas due to the
radioactive decay of K40
References
Emsley, J., 1991; THE ELEMENTS : Sec. Ed.,
Clarendon Press, Oxford, 251 p.