monoatomic |
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| navigate by keyword : noble gases inert gas aerogens periodic table elements element helium group neon argon krypton xenon radon oganesson monoatomic family cluster sign chemical chemistry name number symbol tabular atomic system grid raster chart education science vector |
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| Noble gases, chemically related elements of group 18 in the periodic table. Helium, neon, argon, krypton, xenon, radon, and oganesson. Also known as the inert gases and aerogens. Illustration. Vector |
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