Main Page | See live article | Alphabetical index Non-elementary particles Molecule, consists of atoms An Atom consists of a nucleus containing both protons (Baryon variety of Hadron) and neutrons (Baryon variety of Hadron) with an orbiting electrons (Lepton) cloud. Hadrons, composed of quarks and gluons, three types: Baryons, Three quarks Proton, part of the atomic nucleus Neutron, part of the atomic nucleus 'Exotic Baryons' Pentaquark, made of five quarks Mesons, quark+antiquark Pion Kaon Elementary particles Fermions, of these particles there also exist an anti-particle Leptons, six types: Electron, the antiparticle of the electron is called Positron Muon Tauon Electron-, Muon-, and Tauon-Neutrino Quarks, six types: (up, down, strange, charm, top and bottom) Bosons, these particles are their own anti-particle. They carry the fundamental forces of nature. Graviton, transmits gravity (not yet observed) Higgs boson, gives particles mass (not yet observed) Photon, transmits electromagnetic force W and Z bosons, transmits weak nuclear force Gluons, transmits strong nuclear force This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.