Which of the following subshells cannot exist in an atom?
A) 4d
B) 5g
C) 5f
D) 4f
E) 3f

Question

Quizplus · Accepted Answer

Subshells with letters beyond f do not exist in atoms. The letters represent the angular momentum quantum number, which can have integer values ranging from 0 to n-1, where n is the principal quantum number. Therefore, for n = 3, the possible angular momentum quantum numbers are 0, 1, and 2, which correspond to the s, p, and d subshells, respectively. There is no value of the angular momentum quantum number that corresponds to the letter "f" for n = 3.

Which of the Following Subshells Cannot Exist in an Atom