NEON

Neon

Neon is a chemical element with symbol Ne and atomic number 10. It is in group 18 of the periodic table. Neon is a colorless, odorless, inert monatomic gas under standard conditions, with about two-thirds the density of air. It was discovered in 1898 as one of the three residual rare inert elements remaining in dry air, after nitrogen, oxygen, argon and carbon dioxide are removed. Neon was the second of these three rare gases to be discovered, and was immediately recognized as a new element from its bright red emission spectrum. The name neon is derived from the Greek word, νέον, neuter singular form of νέος neos'>1, ...

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neon

Noun

  1. The chemical element (symbol Ne) with an atomic number of 10.
  2. A form or sample of the element.
  3. neon signs, collectively.
  4. a neon tetra fish

Adjective

  1. Extremely bright; fluorescent.


The above text is a snippet from Wiktionary: neon
and as such is available under the Creative Commons Attribution/Share-Alike License.

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