Atomic Structure Question 202
Question: Nitrogen has the electronic configuration $ 1s^{2},2s^{2}2p_x^{1}2p_y^{1}2p_z^{1} $ and not $ 1s^{2},2s^{2}2p_x^{2}2p_y^{1}2p_z^{0} $ which is determined by
[DPMT 1982, 83, 89; MP PMT/PET 1988; EAMCET 1988]
Options:
A) Aufbau’s principle
B) Pauli’s exclusion principle
C) Hund’s rule
D) Uncertainty principle
Show Answer
Answer:
Correct Answer: C
Solution:
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.
