Neon was first separated from other inert gases in 1898 by the British chemists Sir William Ramsay and Morris Travers. It constitutes 18 parts per 1 million in the atmosphere. The first demonstration of the existence of a stable isotope in an element was performed with neon in 1912. Neon produces a crimson glow in a vacuum electric-discharge tube and is used extensively in the familiar neon light of advertising displays. The term neon light is often incorrectly applied to discharge tubes filled with gases other than neon that produce a colored glow.
Liquid neon is used as a cryogenic refrigerant.
It has over 40 times more refrigerating capacity per unit volume than liquid helium . The atomic weight of neon is 20.179. All Rights Reserved Worldwide.