Do Fermions Obey Principle?

Those particles to which the Pauli exclusion principle applies are called fermions; those that do not obey this principle are called bosons. When in a closed system, such as an atom for electrons or a nucleus for protons and neutrons, fermions are distributed so that a given state is occupied by only one at a time.

Why do fermions obey the Pauli exclusion principle?

The Pauli Exclusion Principle is that no two indistinguishable fermions may occupy the same quantum state. It does not apply to pairs of distinguishable fermions (e.g. a neutron and a proton). If it did, then nuclear physics would be very different.

Which statistics obey the Pauli exclusion principle?

Particles that follow this statistics are called bosons. Fermons (such as electrons, protons, neutrons, and neutrinos), which have half–integer spin, abide by the Pauli exclusion principle, while bosons (alpha particles and photons, with integer spin) do not.