Neon
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Neon is a chemical element; it has the symbol Ne and the atomic number 10. It is the second noble gas in the periodic table. Neon is a colorless, odorless, inert monatomic gas under standard condition
Neon gas-discharge lamps forming neon's element symbol
The first evidence for isotopes of a stable element was provided in 1913 by experiments on neon plasma. In the bottom right corner of J. J. Thomson's photographic plate are the separate impact marks for the two isotopes neon-20 and neon-22.
The emission spectrum of neon shows individual wavelengths of light contributing to its perceived color when heated.
Noble gas
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The noble gases are the members of group 18 of the periodic table: helium, neon, argon, krypton, xenon, radon and, in some cases, oganesson. Under standard conditions, the first six of these elements
Thanks to its characteristic spectral lines, Helium was discovered to exist on the Sun before it was discovered on Earth.
Liquid helium is used to cool superconducting magnets in modern MRI scanners.
Goodyear Blimp
15,000-watt xenon short-arc lamp used in IMAX projectors