Pauli Exclusion Principle

Pauli Exclusion Principle
In a given atom no two electrons can have the same set of the four
quantum numbers n, l, m, and ms.
An orbital can hold a maximum of two electrons. If two are present, they
must have opposite spins

allow

Example:
W hich of the following sets of quantum numbers are not allowed in the hydrogen atom? For the sets of quantum numbers that are incorrect, state what is wrong.

allow

For l = 0 (s orbitals→ns)

yes

For l = 1 (p orbitals → np)

For l = 2 (d orbitals → nd)

Example:

List the values of n, l, and ml associated with a 6p subshell.

List the values of n, l, and ml associated with a 4s subshell.

Orbitals of Multi-Electron Atom