All quantum states forming a shell have the same
A) principal quantum number n.
B) orbital quantum number .
C) orbital magnetic quantum number .
D) n, and
E) n and only.

Question

All quantum states forming a shell have the same
A) principal quantum number n. 
B) orbital quantum number . 
C) orbital magnetic quantum number . 
D) n, and 
E) n and only.

Quizplus · Accepted Answer

The principal quantum number (n) determines the energy level of an electron in an atom. All quantum states forming a shell have the same value of n, which means they have the same energy level. The other quantum numbers (l, ml, ms) determine the shape, orientation, and spin of the electron's orbital, and can vary within a shell.

All Quantum States Forming a Shell Have the Same