Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Actinide> ?p ?o }
- Actinide abstract "The actinide /ˈæktᵻnaɪd/ or actinoid /ˈæktᵻnɔɪd/ (IUPAC nomenclature) series encompasses the 15 metallic chemical elements with atomic numbers from 89 to 103, actinium through lawrencium.The actinide series derives its name from the first element in the series, actinium. The informal chemical symbol An is used in general discussions of actinide chemistry to refer to any actinide. All but one of the actinides are f-block elements, corresponding to the filling of the 5f electron shell; lawrencium, a d-block element, is also generally considered an actinide. In comparison with the lanthanides, also mostly f-block elements, the actinides show much more variable valence. They all have very large atomic and ionic radii and exhibit an unusually large range of physical properties. While actinium and the late actinides (from americium onwards) behave similarly to the lanthanides, the elements thorium through neptunium are much more similar to transition metals in their chemistry.All actinides are radioactive and release energy upon radioactive decay; naturally occurring uranium and thorium, and synthetically produced plutonium are the most abundant actinides on Earth. These are used in nuclear reactors and nuclear weapons. Uranium and thorium also have diverse current or historical uses, and americium is used in the ionization chambers of most modern smoke detectors.Of the actinides, primordial thorium and uranium occur naturally in substantial quantities and small amounts of persisting natural plutonium have also been identified. The radioactive decay of uranium produces transient amounts of actinium and protactinium, and atoms of neptunium and plutonium are occasionally produced from transmutation reactions in uranium ores. The other actinides are purely synthetic elements. Nuclear weapons tests have released at least six actinides heavier than plutonium into the environment; analysis of debris from a 1952 hydrogen bomb explosion showed the presence of americium, curium, berkelium, californium, einsteinium and fermium.In presentations of the periodic table, the lanthanides and the actinides are customarily shown as two additional rows below the main body of the table, with placeholders or else a selected single element of each series (either lanthanum or lutetium, and either actinium or lawrencium, respectively) shown in a single cell of the main table, between barium and hafnium, and radium and rutherfordium, respectively. This convention is entirely a matter of aesthetics and formatting practicality; a rarely used wide-formatted periodic table inserts the lanthanide and actinide series in their proper places, as parts of the table's sixth and seventh rows (periods).".
- Actinide thumbnail Nagasakibomb.jpg?width=300.
- Actinide wikiPageExternalLink arq.lanl.gov.
- Actinide wikiPageExternalLink 96B05654.html.
- Actinide wikiPageExternalLink search=%22actinide%20series%22.
- Actinide wikiPageID "2308".
- Actinide wikiPageLength "108213".
- Actinide wikiPageOutDegree "466".
- Actinide wikiPageRevisionID "704903894".
- Actinide wikiPageWikiLink Acetonitrile.
- Actinide wikiPageWikiLink Acetylacetone.
- Actinide wikiPageWikiLink Actinides_in_the_environment.
- Actinide wikiPageWikiLink Actinium.
- Actinide wikiPageWikiLink Actinium_sulfide.
- Actinide wikiPageWikiLink Adsorption.
- Actinide wikiPageWikiLink Aerosol.
- Actinide wikiPageWikiLink Aesthetics.
- Actinide wikiPageWikiLink Albert_Ghiorso.
- Actinide wikiPageWikiLink Alloy.
- Actinide wikiPageWikiLink Alpha_decay.
- Actinide wikiPageWikiLink Alpha_particle.
- Actinide wikiPageWikiLink Americium.
- Actinide wikiPageWikiLink Americium-241.
- Actinide wikiPageWikiLink Americium_dioxide.
- Actinide wikiPageWikiLink Ammonium_carbonate.
- Actinide wikiPageWikiLink Ammonium_nitrate.
- Actinide wikiPageWikiLink Amphoterism.
- Actinide wikiPageWikiLink André-Louis_Debierne.
- Actinide wikiPageWikiLink Apollo_14.
- Actinide wikiPageWikiLink Apollo_program.
- Actinide wikiPageWikiLink Atomic_mass.
- Actinide wikiPageWikiLink Atomic_number.
- Actinide wikiPageWikiLink Atomic_radius.
- Actinide wikiPageWikiLink Aufbau_principle.
- Actinide wikiPageWikiLink Autunite.
- Actinide wikiPageWikiLink Barium.
- Actinide wikiPageWikiLink Base_(chemistry).
- Actinide wikiPageWikiLink Berkeley,_California.
- Actinide wikiPageWikiLink Berkelium.
- Actinide wikiPageWikiLink Beryllium.
- Actinide wikiPageWikiLink Beta_decay.
- Actinide wikiPageWikiLink Beta_particle.
- Actinide wikiPageWikiLink Block_(periodic_table).
- Actinide wikiPageWikiLink Boiling_point.
- Actinide wikiPageWikiLink Boric_acid.
- Actinide wikiPageWikiLink Boron.
- Actinide wikiPageWikiLink Breeder_reactor.
- Actinide wikiPageWikiLink Bromide.
- Actinide wikiPageWikiLink CAS_Registry_Number.
- Actinide wikiPageWikiLink Cadmium.
- Actinide wikiPageWikiLink Calcium.
- Actinide wikiPageWikiLink Calcium_fluoride.
- Actinide wikiPageWikiLink Californium.
- Actinide wikiPageWikiLink Carbide.
- Actinide wikiPageWikiLink Carbon.
- Actinide wikiPageWikiLink Carbonate.
- Actinide wikiPageWikiLink Carnotite.
- Actinide wikiPageWikiLink Catalysis.
- Actinide wikiPageWikiLink Category:Actinides.
- Actinide wikiPageWikiLink Category:Periodic_table.
- Actinide wikiPageWikiLink Category:Radiometric_dating.
- Actinide wikiPageWikiLink Category:Thorium_minerals.
- Actinide wikiPageWikiLink Category:Uranium_minerals.
- Actinide wikiPageWikiLink Cerium.
- Actinide wikiPageWikiLink Chalcogen.
- Actinide wikiPageWikiLink Chemical_compound.
- Actinide wikiPageWikiLink Chemical_element.
- Actinide wikiPageWikiLink Chemical_formula.
- Actinide wikiPageWikiLink Chemical_nomenclature.
- Actinide wikiPageWikiLink Chicago_Pile-1.
- Actinide wikiPageWikiLink Chloride.
- Actinide wikiPageWikiLink Cold_War.
- Actinide wikiPageWikiLink Colorado.
- Actinide wikiPageWikiLink Coordination_complex.
- Actinide wikiPageWikiLink Coordination_number.
- Actinide wikiPageWikiLink Corrosion.
- Actinide wikiPageWikiLink Critical_mass.
- Actinide wikiPageWikiLink Crystal_bar_process.
- Actinide wikiPageWikiLink Crystal_structure.
- Actinide wikiPageWikiLink Cubic_crystal_system.
- Actinide wikiPageWikiLink Curie.
- Actinide wikiPageWikiLink Curium.
- Actinide wikiPageWikiLink Cyclotron.
- Actinide wikiPageWikiLink Decay_chain.
- Actinide wikiPageWikiLink Density.
- Actinide wikiPageWikiLink Deuterium.
- Actinide wikiPageWikiLink Distillation.
- Actinide wikiPageWikiLink Dmitri_Mendeleev.
- Actinide wikiPageWikiLink Dolomite.
- Actinide wikiPageWikiLink Dysprosium.
- Actinide wikiPageWikiLink Edwin_McMillan.
- Actinide wikiPageWikiLink Einsteinium.
- Actinide wikiPageWikiLink Electrical_resistivity_and_conductivity.
- Actinide wikiPageWikiLink Electrolysis.
- Actinide wikiPageWikiLink Electron.
- Actinide wikiPageWikiLink Electron_shell.
- Actinide wikiPageWikiLink Enrico_Fermi.
- Actinide wikiPageWikiLink Erbium.
- Actinide wikiPageWikiLink Eugène-Melchior_Péligot.
- Actinide wikiPageWikiLink Europium.