For any atom other that hydrogen and helium all electrons in the same shell have:
A)the same energy
B)the same magnitude of angular momentum
C)the same magnetic quantum number
D)the same spin quantum number
E)none of the above

Question

Quizplus · Accepted Answer

For atoms other than hydrogen and helium, electrons in the same shell do not necessarily have the same energy due to electron-electron interactions and the splitting of energy levels into sublevels (s, p, d, f). They also have different angular momenta (quantified by the azimuthal quantum number, l), different magnetic quantum numbers (m_l), and can have different spin quantum numbers (m_s) as electrons can be spin-up or spin-down.

For Any Atom Other That Hydrogen and Helium All Electrons