Group 18 elements are know as
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The noble gases are in Group 18(8A). They are helium, neon, argon, krypton, xenon, and radon. They were once called inert gases because they were thought to be completely inert—unable to form compounds.
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Inert gases or noble gases
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group of 18 elements are called noble gases are in Group 18 (8A). They are helium, neon, argon, krypton, xenon, and radon. They were once called inert gases because they were thought to be completely inert—unable to form compounds
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