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chlorine is more reactive than selenium. Chlorine needs one electron to form octet whereas selenium needs two.

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11y ago
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11y ago

Chlorine.

Potassium is a metal. Out of the other three non-metals, chlorine is most reactive, followed by selenium. Argon is the least reactive.

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3y ago

chlorine

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Q: Which is the most active nonmetal out of argon chlorine potassium or selenium?
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