NOBLEGAS

Noble gas

The noble gases make a group of chemical elements with similar properties: under standard conditions, they are all odorless, colorless, monatomic gases with very low chemical reactivity. The six noble gases that occur naturally are helium , neon , argon , krypton , xenon , and the radioactive radon .

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noble gas

Noun

  1. Any of the elements of group 18 of the periodic table, being monatomic and (with very limited exceptions) inert.


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

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