Atomic Structure Question 412
Question: If the nitrogen atom had electronic configuration $ 1s^{7} $ it would have energy lower than that of the normal ground state configuration $ 1s^{2}2s^{2}2p^{3} $ because the electrons would be closer to the nucleus. Yet $ 1s^{7} $ is not observed. It violates
Options:
A) Heisenberg’s uncertainty principle
B) Hund’s rule
C) Pauli exclusion principle
D) Bohr postulate of stationary orbits
Show Answer
Answer:
Correct Answer: C
Solution:
- Not more than two electrons can be present in same atomic orbital. This is Pauli’s exclusion principle.
