Nucleon

Definition

In physics and chemistry, a nucleon is either a proton or a neutron, considered in its role as a component of an atomic nucleus. The number of nucleons in a nucleus defines the atom's mass number.

Related concepts

Alpha particle Antideuterium Antihydrogen Antimatter Antineutron Antiparticle Antiproton Antiquarks Anyon Asymptotic freedom Atom Atomic nucleus Axial coupling constant Axial vector current Axino Axion Azimuthal quantum number B meson Baryon Baryon number Beta decay Boson Bottom antiquark Bottom eta meson Bottom quark Bottomness Bound state Boundary condition CPT symmetry Charge-to-mass ratio Chargino Charm (quantum number)Charm antiquark Charm quark Chemistry Cheshire Cat Color charge Composite particle Curvaton D meson Dalton (unit)Dark photon Davydov soliton Delta baryon Dilaton Diquark Dirac equation Dirac particle Double-charm tetraquark Down antiquark Down quark Dropleton Dual graviton Eightfold way (physics)Electric charge Electron Electron antineutrino Electron capture Electron hole Electron neutrino Electron shell Electron volt Electronvolt Electroweak interaction Elementary charge Elementary particle Equations of motion Eta meson Excited state Exciton Exotic atom Exotic hadron Exotic matter Faddeev–Popov ghost Fermion Flavour (particle physics)Ford Nucleon Fracton (subdimensional particle)Francis E. Low Free neutron Free neutron decay Gauge boson Gaugino Geometry Gerald E. Brown Ghost (physics)Glueball Gluino Gluon Grand unified theory Graviphoton Gravitino Graviton Hadron Half-life Hedgehog space Heptaquark Hexaquark Higgs boson Higgsino Hilbert space History of subatomic physics Hyperon Il Nuovo Cimento Inflaton Internucleon interaction Ion Isospin J/psi meson Journal of Physics G Kaon Kilogram Lambda baryon Lattice QCD Lepton Leptoquark Lewis Carroll List of baryons List of hypothetical particles List of mesons List of particles List of quasiparticles Lithium-6 Magnetic moment Magnetic monopole Magnon Majorana fermion Majoron Mannque Rho Mass Mass number Massless particle Mathematical formulation of the Standard Model Maxwell equations Mean lifetime Meson Mesonic molecule Molecule Motion Muon Muon neutrino Muonium Neutralino Neutrino Neutron Neutron radiation Neutron scattering New Journal of Physics Noether's theorem North-Holland Publishing Nuclear force Nuclear magnetic resonance Nuclear magneton Nuclear physics Nuclear shell Nuclear shell model Nuclear spin Nucleon magnetic moment Nuclide Omega baryon Omega meson Onium Orbital quantum number Parity (physics)Particle Particle Data Group Particle chauvinism Particle physics Pauli exclusion principle Pentaquark Phi meson Phonon Photino Photon Physical Review D Physical Review Letters Physics Physics Letters B Physics Reports Pion Pionium Plasmaron Plasmon Polariton Polaron Pomeron Positron Positronium Preon Proton Proton decay Protonium Quantum chromodynamics Quantum state Quark Quark confinement Quark model Quarkonium Quarks Quasiparticle R-hadron Radar cavity Radioactive decay Relativistic Breit–Wigner distribution Relativistic particle Rho meson Robert Jaffe (physicist)Roper resonance Roton SLAC bag model SU(2)SU(3)SU(4)SU(6)Scalar boson Second Sfermion Sigma baryon Singlet state Skyrmion Spectral asymmetry Spectroscopic notation Spectrum of an operator Speed of light Spin (physics)Spin quantum number Standard Model Sterile neutrino Stop squark Strange antiquark Strange quark Strangeness Strong interaction Subatomic particle Super-Kamiokande Superatom Supercomputer Superpartner T meson Tachyon Tau (particle)Tau neutrino Tauonium Tetraquark Theta meson Timeline of atomic and subatomic physics Timeline of particle discoveries Top antiquark Top quark Topological soliton Topological winding number Topology Total angular momentum Trion (physics)Unit of measure Up antiquark Up quark Upsilon meson Vacuum expectation value Vector current Virtual particle W and Z bosons Wave–particle duality W′ and Z′ bosons X and Y bosons Xi baryon

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