Question

What is excluded by the Pauli Exclusion Principle?

1) Photons
2) Protons
3) Neutrons
4) Electrons

Answer 1

The Pauli Exclusion Principle states no two electrons in an atom can have the same set of four quantum numbers, so it excludes electrons from having identical quantum states.

Step-by-step explanation:

The Pauli Exclusion Principle is an important rule in quantum mechanics that applies to all fermions, but it is most commonly associated with electrons in the context of chemistry and atomic physics. According to the principle, no two electrons in an atom can possess the same set of four quantum numbers. Therefore, in the context of the options provided, the Pauli Exclusion Principle would exclude having more than one electron with the same quantum numbers, making electrons the correct answer.