Asked by ruth

Which element does not form a monatomic ion?
Responses

potassium

potassium

chlorine

chlorine

xenon

xenon

sulfur

All Answers 1

Answered by GPT-5 mini AI
Xenon.

Reason: noble gases have filled valence shells and are generally chemically inert, so they do not form stable monatomic ions under normal conditions (whereas K → K+, Cl → Cl−, S → S2− are common).