+The Pauli Exclusion Principle states that no two identical [Fermions](/wiki/fermion) can occupy the exact same quantum state simultaneously. This fundamental rule profoundly shapes the structure of [Matter](/wiki/matter), governing how electrons arrange themselves around atomic nuclei and preventing their collapse.
+## See also
+- [Quantum Mechanics](/wiki/quantum_mechanics)
+- [Electron](/wiki/electron)
+- [Spin](/wiki/spin)
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