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- Deuterium abstract "Deuterium (symbol D or 2H, also known as heavy hydrogen) is one of two stable isotopes of hydrogen. The nucleus of deuterium, called a deuteron, contains one proton and one neutron, whereas the far more common hydrogen isotope, protium, has no neutron in the nucleus. Deuterium has a natural abundance in Earth's oceans of about one atom in 7003642000000000000♠6420 of hydrogen. Thus deuterium accounts for approximately 0.0156% (or on a mass basis 0.0312%) of all the naturally occurring hydrogen in the oceans, while the most common isotope (hydrogen-1 or protium) accounts for more than 99.98%. The abundance of deuterium changes slightly from one kind of natural water to another (see Vienna Standard Mean Ocean Water).The deuterium isotope's name is formed from the Greek deuteros meaning \"second\", to denote the two particles composing the nucleus. Deuterium was discovered and named in 1931 by Harold Urey, earning him a Nobel Prize in 1934. This was followed by the discovery of the neutron in 1932, which made the nuclear structure of deuterium obvious. Soon after deuterium's discovery, Urey and others produced samples of \"heavy water\" in which the deuterium had been highly concentrated.Deuterium is destroyed in the interiors of stars faster than it is produced. Other natural processes are thought to produce only an insignificant amount of deuterium. Theoretically nearly all deuterium found in nature was produced in the Big Bang 13.8 billion years ago, as the basic or primordial ratio of hydrogen-1 (protium) to deuterium (about 26 atoms of deuterium per million hydrogen atoms) has its origin from that time. This is the ratio found in the gas giant planets, such as Jupiter (see references 2,3 and 4). However, other astronomical bodies are found to have different ratios of deuterium to hydrogen-1. This is thought to be as a result of natural isotope separation processes that occur from solar heating of ices in comets. Like the water-cycle in Earth's weather, such heating processes may enrich deuterium with respect to protium. The analysis of deuterium/protium ratios in comets found results very similar to the mean ratio in Earth's oceans (156 atoms of deuterium per million hydrogens). This reinforces theories that much of Earth's ocean water is of cometary origin. The deuterium/protium ratio of the comet 67P/Churyumov-Gerasimenko, as measured by the Rosetta space probe, is about three times that of earth water. This figure is the highest yet measured in a comet.Deuterium/protium ratios thus continue to be an active topic of research in both astronomy and climatology.".
- Deuterium thumbnail Hydrogen-2.svg?width=300.
- Deuterium wikiPageExternalLink atom.kaeri.re.kr.
- Deuterium wikiPageExternalLink article.ns?id=dn7315.
- Deuterium wikiPageExternalLink Deuterium.
- Deuterium wikiPageExternalLink 060821_mystery_monday.html.
- Deuterium wikiPageID "8524".
- Deuterium wikiPageLength "54796".
- Deuterium wikiPageOutDegree "235".
- Deuterium wikiPageRevisionID "701480689".
- Deuterium wikiPageWikiLink Hartley.
- Deuterium wikiPageWikiLink Alternating_Gradient_Synchrotron.
- Deuterium wikiPageWikiLink Angular_momentum.
- Deuterium wikiPageWikiLink Angular_momentum_operator.
- Deuterium wikiPageWikiLink Antimatter.
- Deuterium wikiPageWikiLink Antineutron.
- Deuterium wikiPageWikiLink Antiproton.
- Deuterium wikiPageWikiLink Atom.
- Deuterium wikiPageWikiLink Atomic_Energy_of_Canada_Limited.
- Deuterium wikiPageWikiLink Atomic_nucleus.
- Deuterium wikiPageWikiLink Beta_decay.
- Deuterium wikiPageWikiLink Big_Bang.
- Deuterium wikiPageWikiLink Big_Bang_nucleosynthesis.
- Deuterium wikiPageWikiLink Binding_energy.
- Deuterium wikiPageWikiLink Biochemistry.
- Deuterium wikiPageWikiLink Bohr_model.
- Deuterium wikiPageWikiLink Boson.
- Deuterium wikiPageWikiLink Break-even.
- Deuterium wikiPageWikiLink Brookhaven_National_Laboratory.
- Deuterium wikiPageWikiLink CANDU_reactor.
- Deuterium wikiPageWikiLink CERN.
- Deuterium wikiPageWikiLink Canada.
- Deuterium wikiPageWikiLink Category:Environmental_isotopes.
- Deuterium wikiPageWikiLink Category:Isotopes_of_hydrogen.
- Deuterium wikiPageWikiLink Category:Neutron_moderators.
- Deuterium wikiPageWikiLink Category:Nuclear_fusion_fuels.
- Deuterium wikiPageWikiLink Category:Nuclear_materials.
- Deuterium wikiPageWikiLink Charge_radius.
- Deuterium wikiPageWikiLink Chemical_compound.
- Deuterium wikiPageWikiLink Chemical_reaction.
- Deuterium wikiPageWikiLink Chemistry.
- Deuterium wikiPageWikiLink Cluster_decay.
- Deuterium wikiPageWikiLink Columbia_University.
- Deuterium wikiPageWikiLink Comet_Hale–Bopp.
- Deuterium wikiPageWikiLink Commutative_property.
- Deuterium wikiPageWikiLink Commutator_(quantum_mechanics).
- Deuterium wikiPageWikiLink Cross_section_(physics).
- Deuterium wikiPageWikiLink Cryogenics.
- Deuterium wikiPageWikiLink Cryostat.
- Deuterium wikiPageWikiLink Deuterium_NMR.
- Deuterium wikiPageWikiLink Dirac_equation.
- Deuterium wikiPageWikiLink Dissociation_(chemistry).
- Deuterium wikiPageWikiLink Distillation.
- Deuterium wikiPageWikiLink Doublet_state.
- Deuterium wikiPageWikiLink Doubly_labeled_water.
- Deuterium wikiPageWikiLink Electric_charge.
- Deuterium wikiPageWikiLink Electric_dipole_moment.
- Deuterium wikiPageWikiLink Electromagnetism.
- Deuterium wikiPageWikiLink Elementary_charge.
- Deuterium wikiPageWikiLink Energy.
- Deuterium wikiPageWikiLink Environmental_science.
- Deuterium wikiPageWikiLink Ernest_Rutherford.
- Deuterium wikiPageWikiLink Eukaryote.
- Deuterium wikiPageWikiLink Excited_state.
- Deuterium wikiPageWikiLink F.M._Devienne.
- Deuterium wikiPageWikiLink Femtometre.
- Deuterium wikiPageWikiLink Femtosecond.
- Deuterium wikiPageWikiLink Ferdinand_Brickwedde.
- Deuterium wikiPageWikiLink File:Deuterium_Ionized.JPG.
- Deuterium wikiPageWikiLink G-factor_(physics).
- Deuterium wikiPageWikiLink Galileo_(spacecraft).
- Deuterium wikiPageWikiLink Gas.
- Deuterium wikiPageWikiLink Gilbert_N._Lewis.
- Deuterium wikiPageWikiLink Girdler_sulfide_process.
- Deuterium wikiPageWikiLink Global_meteoric_water_line.
- Deuterium wikiPageWikiLink Ground_state.
- Deuterium wikiPageWikiLink Halleys_Comet.
- Deuterium wikiPageWikiLink Hamiltonian_(quantum_mechanics).
- Deuterium wikiPageWikiLink Hans_von_Halban.
- Deuterium wikiPageWikiLink Harold_Urey.
- Deuterium wikiPageWikiLink Heavy_water.
- Deuterium wikiPageWikiLink Helium-3.
- Deuterium wikiPageWikiLink Helium-4.
- Deuterium wikiPageWikiLink Hydrogen.
- Deuterium wikiPageWikiLink Hydrogen_atom.
- Deuterium wikiPageWikiLink Hydrogen_deuteride.
- Deuterium wikiPageWikiLink Hydrology.
- Deuterium wikiPageWikiLink Infrared.
- Deuterium wikiPageWikiLink Infrared_spectroscopy.
- Deuterium wikiPageWikiLink Instability.
- Deuterium wikiPageWikiLink International_Union_of_Pure_and_Applied_Chemistry.
- Deuterium wikiPageWikiLink Isospin.
- Deuterium wikiPageWikiLink Isotopes_of_helium.
- Deuterium wikiPageWikiLink Isotopes_of_hydrogen.
- Deuterium wikiPageWikiLink Isotopes_of_lithium.
- Deuterium wikiPageWikiLink Ivy_Mike.
- Deuterium wikiPageWikiLink Jupiter.
- Deuterium wikiPageWikiLink Kinetic_isotope_effect.
- Deuterium wikiPageWikiLink Kuiper_belt.
- Deuterium wikiPageWikiLink Lew_Kowarski.