Which of the following statements about quantum theory is incorrect?
A) No two electrons can have the same four quantum numbers.
B) The energy and position of an electron cannot be determined simultaneously.
C) Lower energy orbitals are filled with electrons before higher energy orbitals.
D) When filling orbitals of equal energy, two electrons will occupy the same orbital before filling a new orbital.
E) All of these are correct.

Question

Quizplus · Accepted Answer

D is incorrect because it misrepresents Hund's rule, which states that electrons fill degenerate orbitals singly first, and only pair up in orbitals when all orbitals at that energy level have one electron.

Which of the Following Statements About Quantum Theory Is Incorrect