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Question

Nitrogen has the electronic configuration 1s2,2s2 2p1x 2p1y 2p1z and not 1s2,2s2 2p2x 2p1y 2p0z which is determined by


A

Aufbau's principle

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B

Pauli's exclusion principle

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C

Hund's rule

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D

Uncertainty principle

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Solution

The correct option is C

Hund's rule


Hund's rule states that pairing of electrons in the orbitals of a subshell (orbitals of equal energy) starts when each of them is singly filled.


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