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Potassium reacts more rapidly than lithium because The outermost electron of potassium is at a greater average distance from the nucleus

Potassium reacts more rapidly than lithium because The outermost electron of potassium-example-1
User Rpattabi
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The correct one will be letter B, since both elements are metals and easily lose electrons, but Potassium has more shells, therefore its outermost shell is farther from the nucleus, and then this electron will be lost with less difficulty.

User GreenTigerEye
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