Molecule

Definition

A molecule is a group of two or more atoms that are held together by attractive forces known as chemical bonds; depending on context, the term may or may not include ions that satisfy this criterion. In quantum physics, organic chemistry, and biochemistry, the distinction from ions is dropped and molecule is often used when referring to polyatomic ions.

Related concepts

2D geometric model ASM International Abiogenesis Absorbance Acetaldehyde Acetamide Acetic acid Acetone Acetonitrile Acetylene Acrolein Acrylonitrile Actinide chemistry Aether (classical element)Agricultural chemistry Air (classical element)Alchemy Alkane stereochemistry Aluminium(I) hydroxide Aluminium(II) oxide Aluminium isocyanide Aluminium monochloride Aluminium monofluoride Amateur chemistry Amedeo Avogadro Amino radical Aminoacetonitrile Ammonia Ammonium Analytical chemistry Angstrom Anion Anthracene Antihydrogen Antineutron Antiparticle Antiproton Anyon Argonium Aristotle Astrobiology Astrochemistry Atmospheric chemistry Atom Atom cluster Atomic and molecular astrophysics Atomic force microscope Atomic force microscopy Atomic nucleus Atomic theory Avogadro constant Axino Axion B meson Baryon Benzene Benzonitrile Biochemistry Biogeochemistry Bioinorganic chemistry Bioorganic chemistry Bioorganometallic chemistry Bioorthogonal chemistry Biophysical chemistry Biopolymer Biosynthesis Bose–Einstein condensate Boson Bottom antiquark Bottom eta meson Bottom quark Bound state Brownian motion Buckminsterfullerene Butyronitrile C-Silicon dicarbide C70 fullerene CCP radical Calorimetry Carbochemistry Carbodiimide Carbohydrate chemistry Carbon Carbon cation Carbon dioxide Carbon monophosphide Carbon monosulfide Carbon monoxide Carbonyl sulfide Catalysis Cation Cell biology Ceramic chemistry Ceramic engineering Characterization (materials science)Chargino Charm antiquark Charm quark Chemical biology Chemical bond Chemical compound Chemical element Chemical engineering Chemical formula Chemical kinetics Chemical nomenclature Chemical physics Chemical polarity Chemical reaction Chemical structure Chemical substance Chemical synthesis Chemical thermodynamics Chemistry Chemistry education Chromatography Circumstellar dust Circumstellar envelope Clandestine chemistry Classical element Clay chemistry Click chemistry Clinical chemistry Combinatorial chemistry Comparison of software for molecular mechanics modeling Computational chemistry Coordination complex Cosmic dust Cosmic ray Cosmochemistry Covalent bond Covalent bonding Crust (geology)Cryochemistry Crystallography Curvaton Cyanamide Cyano radical Cyanoacetylene Cyanoallene Cyanobutadiynyl radical Cyanoformaldehyde Cyanomethyl Cyanopolyyne Cyclopentindene Cyclopropenone Cyclopropenylidene DNA D meson Dalton (unit)Dalton model Dark photon Davydov soliton Delta baryon Democritus Dendrimer Deuterium Diacetylene Diamond Diatomic Diatomic carbon Diatomic molecule Diazenylium Dicarbon monoxide Diffraction Diffuse interstellar band Dihydroxyacetone Dilaton Dimer (chemistry)Dimethyl ether Diode Diquark Discovery of chemical elements Disilicon carbide Dmitrii Perepichka Double-charm tetraquark Down antiquark Down quark Dropleton Dual graviton Dynamic covalent chemistry E-Cyanomethanimine Earliest known life forms Earth (classical element)Earth core Eightfold way (physics)Electroanalytical methods Electrochemistry Electron Electron configuration Electron hole Electron ionization Electron neutrino Electron pair Electrostatic Elemental analysis Elementary particle Emission (electromagnetic radiation)Empedocles Empirical formula Enantioselective synthesis Encyclopædia Britannica Energy Environmental chemistry Equilibrium chemistry Eta meson Ethanethiol Ethanimine Ethanol Ethyl formate Ethylene Ethylene glycol Ethylene oxide Ethynyl radical Etymonline Exciton Exothermic Exotic atom Exotic hadron Exotic matter Extraterrestrial life Extraterrestrial liquid water Faddeev–Popov ghost Femtochemistry Fermion Fire (classical element)Fluorine Fluoromethylidynium Food chemistry Food physical chemistry Forbidden mechanism Force Forensic chemistry Forensic toxicology Formaldehyde Formamide Formic acid Formula unit Formyl radical Fracton (subdimensional particle)Frequency Frequency spectrum Fritz London Frostburg State University Fullerene chemistry Fulminic acid Functional group Gamboge Gas chromatography Gauge boson Gaugino General chemistry Geochemistry Ghost (physics)Glass Glossary of chemical formulae Glueball Gluino Gluon Glycine Glycolaldehyde Glycolonitrile Graphene Graviphoton Gravitino Graviton Green chemistry Guggenheim Fellowship H2NCO+HC4N HCCN Hadron Halonium ion Heavy water Helium Helium dimer Helium hydride ion Hemolithin Heptaquark Heptatrienyl radical Heteronuclear Hexaquark Hexatriynyl radical Higgs boson Higgsino High-performance liquid chromatography History of chemistry History of molecular theory History of subatomic physics Homochirality Homonuclear Houghton Mifflin Co.Hybridization theory Hydrogen Hydrogen atom Hydrogen bond Hydrogen chloride Hydrogen cyanide Hydrogen deuteride Hydrogen fluoride Hydrogen isocyanide Hydrogen molecule-ion Hydrogen peroxide Hydrogen sulfide Hydromagnesium isocyanide Hydroperoxyl Hydroxyl radical IUPAC books Imidogen Inductively coupled plasma mass spectrometry Inflaton Infrared spectroscopy Inorganic chemistry Instrumental chemistry Integer Interdisciplinarity Interface and colloid science Intergalactic dust International Union of Pure and Applied Chemistry Interplanetary medium Interstellar formaldehyde Interstellar medium Ion Ionic bond Ionic bonding Ionic compound Ions Iron(II) cyanide Iron(II) oxide Iron–sulfur world theory Isocyanic acid Isocyanoacetylene Isoformyl Isomer Isomers Isotope J. R. Partington J/psi meson Jean Baptiste Perrin Jean Perrin Kaon Kerogen Ketene Ketenimine Ketenyl Kinetic theory of gases Lambda baryon Latin Lepton Leptoquark Leucippus Light Linus Pauling List of baryons List of biomolecules List of compounds List of hypothetical particles List of inorganic compounds List of interstellar and circumstellar molecules List of mesons List of particles List of quasiparticles Macromolecule Macroscopic Magnesium cyanide Magnesium isocyanide Magnesium monohydride Magnetic monopole Magnetochemistry Magnon Majorana fermion Majoron Mantle (geology)Marc Antoine Auguste Gaudin Mass spectrometry Massless particle Materials science Mathematical chemistry Mathematical formulation of the Standard Model Matrix-assisted laser desorption/ionization McGraw Hill Mechanical equilibrium Mechanochemistry Medicinal chemistry Merriam-Webster Meson Mesonic molecule Metal Metallic bond Metallic bonding Metallurgy Methane Methanethiol Methanol Methoxy Methoxyethane Methyl acetate Methyl cation Methyl formate Methyl isocyanate Methyl isocyanide Methyl radical Methylamine Methylene (compound)Methylene amidogen Methylenimine Methylidyne radical Methylidynephosphane Micromeritics Microwave chemistry Microwave spectroscopy Mole (unit)Molecular Hamiltonian Molecular biology Molecular design software Molecular dynamics Molecular engineering Molecular formula Molecular geometry Molecular ion Molecular mass Molecular mechanics Molecular modelling Molecular orbital Molecular physics Molecular promiscuity Molecule (disambiguation)Molecules in stars Muon Muon neutrino Muonium N-Methylformamide Nanochemistry Naphthalene Near infrared Neo-Latin Network solid Neurochemistry Neutralino Neutrino Neutron Nexus for Exoplanet System Science Nitric oxide Nitrogen Nitrous oxide Nitroxyl Nobel Prize in Chemistry Noble gases Non-covalent bonding Non-covalent interactions Nonmetal (chemistry)Nuclear chemistry Nuclear magnetic resonance spectroscopy Nuclear physics Nucleon Ocean chemistry Octatetraynyl radical Omega baryon Omega meson One-electron bond Onium Online Etymology Dictionary Organic chemistry Organic compound Organic reactions Organic synthesis Organolanthanide chemistry Organometallic chemistry Outer space Oxygen Ozone PAH world hypothesis Particle Particle chauvinism Particle physics Pearson Prentice Hall Pentacene Pentaquark Periodic systems of small molecules Periodic table Perylenetetracarboxylic dianhydride Petrochemistry Pharmacology Phi meson Phonon Phosphine Phosphorus mononitride Phosphorus monoxide Photino Photochemistry Photodissociation region Photoelectrochemistry Photogeochemistry Photon Physical chemistry Physical organic chemistry Pion Pionium Planck relation Plane (mathematics)Plasmaron Plasmon Polariton Polaron Polyatomic ion Polycyclic aromatic hydrocarbon Polymer Polymer chemistry Polymer science Polyyne Pomeron Positron Positronium Post-mortem chemistry Potassium chloride Potassium cyanide Potential energy surface Prentice Hall Preon Propadienylidene Propene Propionaldehyde Propionitrile Propynal Propyne Propynylidyne Proton Protonated carbon dioxide Protonated cyanoacetylene Protonated formaldehyde Protonated hydrogen cyanide Protonium Pseudo-panspermia Pyrene Pyrimidine Quantum chemistry Quantum mechanics Quantum physics Quark Quark model Quarkonium Quartz Quasiparticle R-hadron RNA world hypothesis Radiation chemistry Radical (chemistry)Radiochemistry Raman spectroscopy Ratio Reactivity (chemistry)Relativistic particle René Descartes Resistor Resonance (chemistry)Retrosynthetic analysis Rho meson Robert Boyle Rock (geology)Roton Rydberg molecule Salt (chemistry)Scalar boson Scanning tunneling microscope Scanning tunneling microscopy Schrödinger equation Semisynthesis Separation process Sfermion SiNC Sigma baryon Sigma bond Silane Silicon-carbide cluster Silicon carbide Silicon carbonitride Silicon monosulfide Silicon monoxide Silicon tricarbide Silylidyne Single-molecule electronics Skyrmion Small molecule Sodium Sodium chloride Sodium cyanide Sodium fluoride Sodium hydroxide Sodium iodide Soil chemistry Solid-state chemistry Sonochemistry Spectroelectrochemistry Spectroscopy Spin chemistry Standard Model Stellar chemistry Stereochemistry Stereoisomer Sterile neutrino Stoichiometric Stoichiometry Stop squark Strange antiquark Strange quark Structural chemistry Structural formula Subatomic particle Sulfanyl Sulfur dioxide Sulfur mononitride Sulfur monoxide Superatom Supermolecule Superpartner Supramolecular chemistry Surface science T meson Table of permselectivity for different substances Tachyon Tau (particle)Tau neutrino Tauonium Terpenoid Tetraphenylporphyrin Tetraquark The Sceptical Chymist The central science Theoretical chemistry Thermochemistry Theta meson Thiocyanic acid Thioformaldehyde Thioformyl Thioxoethenylidene Tholin Three-dimensional space Timeline of atomic and subatomic physics Timeline of chemistry Timeline of particle discoveries Titanium(II) oxide Titanium dioxide Titration Top antiquark Top quark Total synthesis Transition state Triatomic molecule Tricarbon Tricarbon monosulfide Tricarbon monoxide Trihydrogen cation Trion (physics)Ultraviolet–visible spectroscopy Unit cell Up antiquark Up quark Upsilon meson VSEPR theory Valency bonds Van der Waals bonding Van der Waals molecule Vinyl alcohol Vinyl cyanide Virtual particle W and Z bosons Walter Heitler Water Water (classical element)Water (molecule)Wave–particle duality Wet chemistry William Higgins (chemist)World Wide Molecular Matrix W′ and Z′ bosons X-ray X and Y bosons Xi baryon

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