Question

What does the Pauli exclusion principle state?

Answer 1

Below

Explanation:

Pauli exclusion principle states that no electron in an atom can have the same 4 quantum numbers. The quantum numbers are `n, l, m_1 and m_s`

`n` is the principal quantum number

`l` is the angular momentum quantum number which determines the shape of the orbital

`m_1` is the magnetic quantum number and describes the orientation of an orbital around the nucleus

`m_s` is the spin quantum number and has 2 possible values ie `m_s=+-1/2`