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Which element is least likely to form chemical bonds?
phosphorus (P)
helium (He)
sodium (Na)
carbon (C)
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GPT-5 mini
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Helium (He).
Reason: He has a full valence shell (1s^2), so it is a closed‑shell noble gas with no tendency to gain, lose, or share electrons. C, P and Na readily form covalent or ionic bonds under normal conditions. (Helium only shows extremely weak van der Waals interactions or exotic species under extreme conditions.)
Reason: He has a full valence shell (1s^2), so it is a closed‑shell noble gas with no tendency to gain, lose, or share electrons. C, P and Na readily form covalent or ionic bonds under normal conditions. (Helium only shows extremely weak van der Waals interactions or exotic species under extreme conditions.)
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