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Neon lights on a balloon and Eiffel Tower,
Paris Las Vegas Hotel & Casino, Las Vegas, Nevada
Atomic symbol Ne
Atomic number 10
Classification Group 18, Noble Gas
Atomic mass 20.2 amu
Melting point (°C) -248.67
Boiling point (°C) -245.92
Density (grams per cc) 0.9002 (per liter)
0.6962 (relative)
Abundance in lithosphere (%) 1.8 x 10-8
Other Information
Date of discovery 1898
Name of discoverer Sir William Ramsay
Morris W. Travers
Name origin Greek: νέος "neos" (new)
Uses Lighting
Obtained from Liquid air

Neon (chemical symbol Ne, atomic number 10) is the fourth most abundant chemical element in the universe, but it is just a trace element in the air. As a member of the noble gas series, it is nearly inert. Under ordinary conditions, it is colorless, but in a vacuum discharge tube, it gives a reddish-orange glow. Consequently, the main use of neon is to make flashy signs for advertising.