Key information
Atomic number: 
10
Atomic weight: 
20.18
Density: 
1200 kg/m³
Boiling point: 
27.16° K
Melting point: 
24.56° K
Heat vapour: 
1.77 kJ/mol
Heat fusion: 
0.34 kJ/mol
Group: 
Noble Gases

Neon is abundant in universal terms but is relatively rare in the Earth''s atmosphere where it is found at 1 part in 65,000 (by volume) or 1 part in 83,000 by mass. It was discovered in 1898, by the Scottish chemist William Ramsay and English chemist Morris W. Travers. Ramsay chilled a sample of the atmosphere until it became a liquid, then warmed the liquid and captured the gases as they boiled off.

Electron Shell: 
Amazon Books
Image of The Last Sorcerers: The Path from Alchemy to the Periodic Table
Author: National Academy of Sciences, Richard Morris
Publisher: Henry (Joseph) Press (2003)
Binding: Hardcover, 294 pages