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atomic number 18Arargonchemical elementelementargononinert gasnoble gasair

atomic number 18

noun

1 atomic number 18

A colorless and odorless inert gas; one of the six inert gases; comprises approximately 1% of the earth's atmosphere.

synonyms: Ar, argon.

is a specific kind of: chemical element, element | argonon, inert gas, noble gas.

is contained in: air.

Dutch: argon
Polish: Ar, argon

Find more on atomic number 18 elsewhere: etymology - rhymes - Wikipedia.

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