Fundamental particles

Fundamental particles are the smallest known constituents of The universe—the building blocks from which all matter and forces emerge. Physics has identified two main categories: Fermions (which make up matter, including Quarks and Leptons) and Bosons (which mediate the Fundamental forces).

The Standard Model catalogues 17 fundamental particles. Quarks combine to form Protons and Neutrons, while electrons (a type of lepton) orbit atomic nuclei. Each particle has antimatter counterpart. Force-carrying bosons—photons for Electromagnetism, W and Z bosons for the Weak interaction, gluons for the Strong interaction—enable particles to interact. The Higgs boson, discovered in 2012, explains how particles acquire mass.

What counts as "fundamental" remains open. Quarks and electrons appear point-like at current scales, yet might be composite at higher energies. String theory proposes vibrating strings underlie particles; other frameworks suggest different foundations.

Understanding fundamental particles bridges observation with theory, reshaping our grasp of reality's deepest structure.

Related

Quantum mechanics, The Standard Model, Particle accelerator, Nobel Prize (in Physics), Exotic matter