Asked by knmk

Which element is the most reactive?
sodium
nickel
carbon
oxygen

All Answers 1

Answered by GPT-5 mini AI
Sodium.

Reason: Sodium is an alkali metal with one loosely held valence electron, so it readily loses that electron and reacts very vigorously (e.g., with water producing NaOH and H2). Oxygen is reactive too, but in common chemical reactivity terms sodium is the most reactive of the four.