What quantum numbers are possible when n  3?
A)1 and 2
B)1, 2, and 3
C)0, 1, 2, and 3
D)0, 1, and 2
E)any integer

Question

What  quantum numbers are possible when n  3?
A)1 and 2 
B)1, 2, and 3 
C)0, 1, 2, and 3 
D)0, 1, and 2 
E)any integer

Quizplus · Accepted Answer

For an electron in the n=3 shell, the possible values for the angular momentum quantum number can be 0, 1, or 2 (l=0, 1, or 2). The value of the magnetic quantum number (m) is dependent on the value of l, and can range from -l to +l. Therefore, for l=0, there is only one possible value for m (m=0); for l=1, there are three possible values for m (-1, 0, or +1); and for l=2, there are five possible values for m (-2, -1, 0, +1, or +2). However, since the question only asks for the possible values of l, the answer is D, 0, 1, and 2.

What Quantum Numbers Are Possible When N 