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'''Fermions''' are [[subatomic particle]]s with half-[[integer]] spin that obey the [[Jacques Dirac|Dirac]]-[[Enrico Fermi|Fermi]] statistics. The known elementary fermions are [[quark]]s and [[lepton]]s, which make up all [[atom]]s. Composite particles, such as [[meson]]s, can also be fermions.

[[Category:Quantum Mechanics]]