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Which element requieres the least amount of energy to remove the outermost electron
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Which element requieres the least amount of energy to remove the outermost electron

User Jabirali
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The correct answer is Caesium as it not only has one electron in the outer shell only, but it is also further away from the nucleus compared to other alkali metals.
User Frank Roth
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4 votes

Answer: Sodium

Explanation: The sodium has only one electron at the outer layer.

Hope this helps! :)

User Jndok
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