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The outer electron of a potassium atom is further from its nucleus than the outer electron of a lithium

atom. Which atom is more reactive?

User Avivit
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1 Answer

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The potassium atom is more reactive than Lithium atom because the atomic radius of Potassium is more than the atomic radius of Lithium. This means that the outer electrons of Potassium are shielded very well by the s orbital.

Hope it helps

User Bmacharia
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