Nitrogen has the electronic configuration 1 s 2 , 2 s 2 2 p 1 x 2 p 1 y 2 p 1 z and not 1 s 2 , 2 s 2 2 p 2 x 2 p 1 y 2 p 0 z which is determined by Options: A . &nbsp Aufbau's principle B . &nbsp Pauli's exclusion principle C . &nbsp Hund's rule D . &nbsp Uncertainty principle

Nitrogen has the electronic configuration 1s2,2s2 2p1x 2p1y 2p1

Discussion Forum : Atomic Structure

Question -

Nitrogen has the electronic configuration $1 s^{2}, 2 s^{2} 2 p_{x}^{1} 2 p_{y}^{1} 2 p_{z}^{1}$ and not $1 s^{2}, 2 s^{2} 2 p_{x}^{2} 2 p_{y}^{1} 2 p_{z}^{0}$ which is determined by

Options:

A . Aufbau's principle

B . Pauli's exclusion principle

C . Hund's rule

D . Uncertainty principle

Answer: Option C
:
C

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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