The neon or neo (from the Greek νέος -α -ον "nèos -a -on" meaning "new") is a chemical element of the periodic table of the elements, which has the symbol Ne and as atomic number 10. It is almost a noble gas Inert and colorless. The neon has a distinctive reddish glow when it is used in a discharge tube or in the lamps called "neon". It is traced in the air.
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