In an electrically neutral atom, o the number of protons equals the number of
neutrons.
the number of protons equals the number of
electrons.
the number of neutrons equals the number of
electrons.

the number of Protons equals the number of Electrons.

Explanation:

Edg 2021

if two electrons have the same n, the same ℓ, and the same ml, then they are in the same orbital. the pauli exclusion principle states that no two identical fermions (a fancy word for electrons and other subatomic particles like electrons) may occupy the same quantum state in an atom simultaneously.