The number of quantum numbers needed to determine the size and shape of the probability cloud of an atomic electron is
A)1.
B)2.
C)3.
D)4.

Question

Quizplus · Accepted Answer

To determine the size and shape of the probability cloud of an atomic electron, we need three quantum numbers: principal quantum number (n), azimuthal quantum number (l), and magnetic quantum number (m). The principal quantum number determines the distance of the electron from the nucleus, the azimuthal quantum number determines the shape of the orbital (spherical, dumbbell, etc.), and the magnetic quantum number determines the orientation of the orbital in space.

The Number of Quantum Numbers Needed to Determine the Size