An electron in an L shell of an atom has the principal quantum number:
A)n = 0
B)n = 1
C)n = 2
D)n = 3
E)n = $\infty$

Question

An electron in an L shell of an atom has the principal quantum number:
A)n = 0
B)n = 1
C)n = 2
D)n = 3
E)n =  $\infty$

Quizplus · Accepted Answer

The L shell corresponds to the angular momentum quantum number ℓ = 1, which means that the principal quantum number n must be equal to or greater than 2. Therefore, the electron in an L shell of an atom has a principal quantum number of n = 2. Choice C is the only option that matches this.

An Electron in an L Shell of an Atom Has ∞\infty∞

An Electron in an L Shell of an Atom Has $\infty$