If the electron configuration of an element is 1S\(^2\) 2S\(^2\)2P\(^5\), how many unpaired electron are…

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Chemistry JAMB 2007

If the electron configuration of an element is 1S\(^2\) 2S\(^2\)2P\(^5\), how many unpaired electron are there?

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The correct answer is: C

Explanation

When the electrons are drawn out in the orbitals, following the Hund's rule, the diagram above is what will be obtained.

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