Question

Rare gases are.......

Answer 1

Answer:

The so-called "rare" gases Neon (Ne), Krypton (Kr) and Xenon (Xe), are present in air in very low concentrations. Like the other "noble" or "inert" gases, helium (He), argon (Ar) and radon (Rn), Neon, Krypton and Xenon remain in the air because they do not combine with other materials to form solid or liquid compounds.

Explanation:

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