(So named (
Greek neon, "new") in
1898 by
Sir William Ramsay, it's co-discoverer) An
inert chemical element, one of the
noble gases, that is tasteless, odorless, and colorless, found in small quantities in the earth's
atmosphere and used in
discharge tubes, gas
lasers, bright electrical
signs, etc.
Symbol: Ne
Atomic number: 10
Atomic weight: 20.1797
Density (at 0°C with 101,325 pascals): 0.8999 g/L
Melting point: -248.67°C
Boiling point: -246.048°C
Valence: 0
Ground state electron configuration: [He]2s22p6