Fermion

A fermion is a type of particle that makes up matter, such as electrons, protons, and neutrons. They follow a rule called the Pauli Exclusion Principle, which states that no two fermions can occupy the same quantum state simultaneously. This property is essential for the structure of atoms and the stability of matter. Fermions have half-integer spins (like 1/2), distinguishing them from other particles called bosons. Their behavior underpins the organization of particles in the universe, ensuring that matter has volume and substance, rather than collapsing into a dense, featureless point.