Designate the correct quantum numbers for 2s orbital?
A)n = 2,l = 1,m = 0,s = + or -1/2
B)n = 2,l = 0,m = 0,s = + or -1/2
C)n = 2,l = 0,m = +1,s = + or -1/2
D)n = 1,l = 0,m = 0,s = + or -1/2

Question

Quizplus · Accepted Answer

The 2s orbital has a principal quantum number (n) of 2 and an angular momentum quantum number (l) of 0, since it is an s orbital. The magnetic quantum number (m) for an s orbital is always 0. The spin quantum number (s) can be either +1/2 or -1/2. Therefore, the correct quantum numbers for the 2s orbital are n = 2, l = 0, m = 0, and s = + or -1/2. Choice B matches these quantum numbers.

Designate the Correct Quantum Numbers for 2s Orbital