Inert-gas synonyms

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Any of the six gases helium, neon, argon, krypton, xenon, and radon. Because the outermost electron shell of atoms of these gases is full, they do not react chemically with other substances except under certain special conditions.
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any of the chemically inert gaseous elements of the helium group in the periodic table
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Find another word for inert-gas. In this page you can discover 4 synonyms, antonyms, idiomatic expressions, and related words for inert-gas, like: halogen gas, noble-gas, rare gas and argonon.