+Subatomic particles are the universe's most fundamental constituents, smaller than an [Atom](/wiki/atom). They are the building blocks of all matter and energy, governed by the laws of [Quantum Mechanics](/wiki/quantum_mechanics). Some are indivisible, classified as [Fundamental Particles](/wiki/fundamental_particles), while others are composites.
+## See also
+- [Particle Physics](/wiki/particle_physics)
+- [Quark](/wiki/quark)
+- [Electron](/wiki/electron)
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