Atomic Structure Question 229
Question: The explanation for the presence of three unpaired electrons in the nitrogen atom can be given by [NCERT 1979; RPMT 1999; DCE 1999, 2002; CPMT 2001; MP PMT 2002; Pb. PMT / CET 2002]
Options:
A) Pauli’s exclusion principle
B) Hund’s rule
C) Aufbau’s principle
D) Uncertainty principle
Show Answer
Answer:
Correct Answer: B
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.
