Colourless, odourless, non-metallic, gaseous element, atomic number 10, relative atomic mass 20.183. It is grouped with the
noble gases (rare gases) in Group 0 of the
periodic table. Neon is nonreactive, and forms no compounds. It occurs in small quantities in the Earth's atmosphere.
Tubes containing neon are used in electric advertising signs, giving off a fiery red glow; it is also used in lasers. Neon was discovered by Scottish chemist William Ramsay and English chemist Morris Travers.
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