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Q.

What is Hund’s rule ?

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answer is 1.

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Detailed Solution

In the degenerate orbitals of an atom pairing of electrons takes place only after all the degenerate orbitals are filled with one electron each.
Eg : Nitrogen (Z=7)

 Electronic configuration of nitrogen ( 1s 22s 22p 3  )

What is electron configuration of nitrogen and copper using ...
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