argonon
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(noun) any of the chemically inert gaseous elements of the helium group (group 8A or 0 of the periodic table) |
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Synonyms: inert gas, noble gas |
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Related Words: Ar, He, Kr, Ne, Rn, Xe, argon, atomic number 10, atomic number 18, atomic number 2, atomic number 54, atomic number 86, chemical element, element, gas, helium, krypton, neon, radon, xenon |
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