Potential answers for "Krypton, argon, etc."

⭐⭐⭐⭐ GASES
⭐⭐⭐ INERT
⭐⭐⭐ NOBLE
⭐⭐⭐ NOBLEGASES
⭐⭐⭐ GAS
⭐⭐ RAREGAS

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