Question

Principal, azimuthal and magnetic quantum numbers are respectively related to

• A. shape, size and orientation
• B. size, shape and orientation
• C. size, orientation and shape
• D. none of these

Answer 1

Answer: (B)

size, shape and orientation

Answer 2

Principle quantum number $(n)$ represents the name, size and energy of the shell of the electron. $n=1,2,3,4 \ldots \ldots$ Azimuthal quantum number $(l)$ describes the spatial distribution of electron cloud and angular momentum. Magnetic quantum number $(m)$ describes the possible orientations of orbitals.