elementary particle, fundamental particle, nucleus, subatomic particle

electrons, nuclei, neutrons, ions, exciton, antiparticle, orbitals, hydrogen atom, molecule, photon, particle, quark, alpha particle, meson, hyperfine, bosons, crystal lattice, fermions, planck constant, protons, valence electrons, atomic, phonon, nucleons, subatomic particle, radioactive decay, photoemission, hadrons, quasicrystal, nanoscale, strange quark, dimer, muon, quantum mechanics, antiproton, fissioning, graviton, gravitons, positron, electromagnetism, crystallites, antiquarks, electron volt, neutrino, electric dipole, dipolar, tokamak, superfluid, buckyball, attosecond, titanium oxide, gluon, leptons, antineutrino, carbene, quantum mechanical, fission reactor, fullerene, carbon atom, baryon, pions, picosecond, magnetization, dihydrogen, quanta, magnetic monopole, covalent bond, dipole moment, electron microscope, superconductivity, magnetosphere, ceria, porphyrin, excitation, californium, supersolid, chromophore, protostar, valence electron, galaxies, ion beam, hydrides, electroweak, ferromagnetism, silicates, superposition, promethium, nanotube, toroid, micrometer, fissionable, neutron star, actinide, soliton, supramolecular, molecular, antimatter, photosphere, trillionth, van der waals, plasmon, amide, atoms, ion, halogen, corpuscle, cluster, i.e., proton, node, electron, module, molecules, non, exons, item, subunit, cation, granule, nucleon, equilibrium, collinear, anharmonic, dipole, interaction, intermolecular, nonequilibrium, solute, diffractive, fermi, ligand, defect, delocalized

carbon atom, free radical, grain, hydrogen atom, ion, isotope, monad, radical

., acidic hydrogen, acid halide, acid hydrogen, acyl halide, alpha particle, aminomethane, ammonia clock, atomic number, atomic spectrum, atomic theory, atomic warhead, bicarbonate, big, binding energy, bohr, burst, carbon atom, chain reaction, chloride, clean bomb, cockcroft, complex, coordination compound, covalence, covalency, cyanohydrin, dirty bomb, e. t. s. walton, edward teller, electronegativity, electron orbit, electron shell, electrostatic bond, electrovalent bond, elementary particle, emil klaus julius fuchs, enol, ernest rutherford, ernest thomas sinton walton, ernest walton, ether, ethyl, ethyl group, ethyl radical, eugene paul wigner, eugene wigner, exchange, first baron rutherford, first baron rutherford of nelson, free electron, free radical, fuchs, fundamental particle, ground state, haloform, heterocycle, heterocyclic, heterocyclic ring, hydrogen atom, hydrogen bond, hydrogen carbonate, hydrogen ion, hydroxide ion, hydroxyl ion, ion, ionic bond, john von neumann, ketone, klaus fuchs, label, leo szilard, ligand, liothyronine, magnetic dipole moment, marie goeppert mayer, matter, mayer, megadeath, metallized dye, migration, monad, monatomic, mono-iodotyrosine, monoatomic, monobasic acid, monometallic, monoxide, monstrosity, negativity, neumann, neutron bomb, niels bohr, niels henrik david bohr, nuclear, nuclear warhead, nucleosynthesis, nucleus, nuke, orbit, oxidation number, oxidation state, oxygenise, oxygenize, perturb, photoelectron, pieter zeeman, quantum field theory, quantum jump, radical, reducing, reduction, rutherford, rutherford atom, separation energy, sequestration, sir john cockcroft, sir john douglas cockcroft, subatomic, subatomic particle, szilard, teller, thermonuclear warhead, thiazine, triiodothyronine, valence electron, von neumann, walton, wigner, zeeman

chemical element, element, molecule

material, matter, stuff, substance

molecule, mote, particle, speck