The values of quantum numbers n, 1 and m for the fifth electron of boron is

Options

A. rotation of the electron in clockwise and anticlockwise direction respectively.
B. rotation of the electron in anticlockwise and clockwise direction respectively.
C. magnetic moment of the electron pointing up and down respectively.
D. two quantum mechanical spin states which have no classical analogue.

Answer

D

Explanation

spin quantum number indicates the possible Elements