Which of the subshells below do not exist due to the constraints upon the angular momentum quantum number?
A)2d
B)2s
C)2p
D)all of the above
E)none of the above

Question

Quizplus · Accepted Answer

The constraints upon the angular momentum quantum number dictate that the maximum value of l is n-1, where n is the principal quantum number. Therefore, for n=2, l can only be 0 or 1, which corresponds to the 2s and 2p subshells, respectively. The 2d subshell would require an angular momentum quantum number of l=2, which is not allowed for n=2.

Which of the Subshells Below Do Not Exist Due to the Constraints