Answer:
any of these helium, neon, argon, krypton, xenon, radon, oganesson
Explanation:
Noble gases are the group VIII elements that are unreactive due to their greatest stability.
• They are stable because their atoms have their outermost energy level completely filled by electrons.
Examples:
→ Neon (Ne)
→ Ktypton (Kr)
→ Xenon (Xe)
→ Helium (He)
→ Argon (Ar)
→ Radon
→ Oganesson
Note sure of formular for Radon and Oganesson
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