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• Isotopes_of_technetium abstract "Technetium (abbreviation Tc, atomic number 43) is the first of the two elements lighter than bismuth that have no stable isotopes (all are radioactive); the other such element is promethium. It is primarily artificial, only trace quantities existing in nature produced by spontaneous fission or neutron capture by molybdenum. The first isotopes to be synthesized were 97Tc and 99Tc in 1936, the first artificial element to be produced. The most stable radioisotopes are 98Tc (half-life of 4.2 million years), 97Tc (half-life: 2.6 million years) and 99Tc (half-life: 211,100 years).Thirty-three other radioisotopes have been characterized with atomic masses ranging from 85Tc to 120Tc. Most of these have half-lives that are less than an hour; the exceptions are 93Tc (half-life: 2.75 hours), 94Tc (half-life: 4.883 hours), 95Tc (half-life: 20 hours), and 96Tc (half-life: 4.28 days).Technetium also has numerous meta states. 97mTc is the most stable, with a half-life of 90.1 days (0.097 MeV). This is followed by 95mTc (half-life: 61 days, 0.038 MeV), and 99mTc (half-life: 6.01 hours, 0.143 MeV). 99mTc only emits gamma rays, subsequently decaying to 99Tc.For isotopes lighter than the most stable isotope, 98Tc, the primary decay mode is electron capture, giving molybdenum. For the heavier isotopes, the primary mode is beta emission, giving ruthenium, with the exception that 100Tc can decay both by beta emission and electron capture.Technetium-99 is the most common and most readily available isotope, as it is a major fission product from fission of actinides like uranium and plutonium with a fission product yield of 6% or more per fission, and in fact the most significant long-lived fission product. Lighter isotopes of technetium are almost never produced in fission because the initial fission products normally have a higher neutron/proton ratio than is stable for their mass range, and therefore undergo beta decay until reaching the ultimate product. Beta decay of fission products of mass 95-98 stops at the stable isotopes of molybdenum of those masses and does not reach technetium. For mass 100 and greater, the technetium isotopes of those masses are very short-lived and quickly beta decay to isotopes of ruthenium. Therefore the technetium in spent nuclear fuel is practically all 99Tc.One gram of 99Tc produces 6.2×108 disintegrations a second (that is, 0.62 GBq/g).Technetium has no stable or nearly stable isotopes, and thus a standard atomic mass cannot be given.".
• Isotopes_of_technetium wikiPageExternalLink nudat2.
• Isotopes_of_technetium wikiPageExternalLink pdf.
• Isotopes_of_technetium wikiPageExternalLink atomic-weights_revised05.html.
• Isotopes_of_technetium wikiPageExternalLink pdf.
• Isotopes_of_technetium wikiPageExternalLink Nubase2003.pdf.
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• Isotopes_of_technetium wikiPageWikiLink Actinide.
• Isotopes_of_technetium wikiPageWikiLink Atomic_mass.
• Isotopes_of_technetium wikiPageWikiLink Atomic_number.
• Isotopes_of_technetium wikiPageWikiLink Becquerel.
• Isotopes_of_technetium wikiPageWikiLink Beta_decay.
• Isotopes_of_technetium wikiPageWikiLink Bismuth.
• Isotopes_of_technetium wikiPageWikiLink Boron.
• Isotopes_of_technetium wikiPageWikiLink Boron-10.
• Isotopes_of_technetium wikiPageWikiLink Brookhaven_National_Laboratory.
• Isotopes_of_technetium wikiPageWikiLink CRC_Handbook_of_Chemistry_and_Physics.
• Isotopes_of_technetium wikiPageWikiLink CRC_Press.
• Isotopes_of_technetium wikiPageWikiLink Category:Isotopes_of_technetium.
• Isotopes_of_technetium wikiPageWikiLink Category:Lists_of_isotopes_by_element.
• Isotopes_of_technetium wikiPageWikiLink Category:Technetium.
• Isotopes_of_technetium wikiPageWikiLink Decay_mode.
• Isotopes_of_technetium wikiPageWikiLink Deuterium.
• Isotopes_of_technetium wikiPageWikiLink Electron_capture.
• Isotopes_of_technetium wikiPageWikiLink Fission_product.
• Isotopes_of_technetium wikiPageWikiLink Fission_product_yield.
• Isotopes_of_technetium wikiPageWikiLink Gamma_ray.
• Isotopes_of_technetium wikiPageWikiLink Half-life.
• Isotopes_of_technetium wikiPageWikiLink Isomeric_transition.
• Isotopes_of_technetium wikiPageWikiLink Isotope.
• Isotopes_of_technetium wikiPageWikiLink Isotopes_of_lithium.
• Isotopes_of_technetium wikiPageWikiLink Isotopes_of_molybdenum.
• Isotopes_of_technetium wikiPageWikiLink Isotopes_of_nitrogen.
• Isotopes_of_technetium wikiPageWikiLink Isotopes_of_ruthenium.
• Isotopes_of_technetium wikiPageWikiLink Liquid_drop_model.
• Isotopes_of_technetium wikiPageWikiLink Lithium-6.
• Isotopes_of_technetium wikiPageWikiLink Long-lived_fission_product.
• Isotopes_of_technetium wikiPageWikiLink Molybdenum.
• Isotopes_of_technetium wikiPageWikiLink National_Nuclear_Data_Center.
• Isotopes_of_technetium wikiPageWikiLink Neutron.
• Isotopes_of_technetium wikiPageWikiLink Neutron_capture.
• Isotopes_of_technetium wikiPageWikiLink Neutron_emission.
• Isotopes_of_technetium wikiPageWikiLink Nitrogen-14.
• Isotopes_of_technetium wikiPageWikiLink Nuclear_Physics_(journal).
• Isotopes_of_technetium wikiPageWikiLink Nuclear_Physics_A.
• Isotopes_of_technetium wikiPageWikiLink Nuclear_fission_product.
• Isotopes_of_technetium wikiPageWikiLink Nuclear_isomer.
• Isotopes_of_technetium wikiPageWikiLink Parabola.
• Isotopes_of_technetium wikiPageWikiLink Plutonium.
• Isotopes_of_technetium wikiPageWikiLink Positron.
• Isotopes_of_technetium wikiPageWikiLink Promethium.
• Isotopes_of_technetium wikiPageWikiLink Proton.
• Isotopes_of_technetium wikiPageWikiLink Proton_emission.
• Isotopes_of_technetium wikiPageWikiLink Pure_and_Applied_Chemistry.
• Isotopes_of_technetium wikiPageWikiLink Radioactive_decay.
• Isotopes_of_technetium wikiPageWikiLink Radionuclide.
• Isotopes_of_technetium wikiPageWikiLink Ruthenium.
• Isotopes_of_technetium wikiPageWikiLink Semi-empirical_mass_formula.
• Isotopes_of_technetium wikiPageWikiLink Spent_nuclear_fuel.
• Isotopes_of_technetium wikiPageWikiLink Spontaneous_fission.
• Isotopes_of_technetium wikiPageWikiLink Technetium.
• Isotopes_of_technetium wikiPageWikiLink Technetium-99.
• Isotopes_of_technetium wikiPageWikiLink Technetium-99m.
• Isotopes_of_technetium wikiPageWikiLink Uranium.
• Isotopes_of_technetium wikiPageWikiLink Talk:Isotopes_of_technetium.
• Isotopes_of_technetium wikiPageWikiLinkText "Isotopes of technetium".
• Isotopes_of_technetium wikiPageWikiLinkText "Isotopes of technetium#Technetium-100".
• Isotopes_of_technetium wikiPageWikiLinkText "Isotopes of technetium#Technetium-101".
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• Isotopes_of_technetium wikiPageWikiLinkText "Isotopes of technetium#Technetium-85".
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• Isotopes_of_technetium wikiPageWikiLinkText "Isotopes of technetium#Technetium-92".
• Isotopes_of_technetium wikiPageWikiLinkText "Isotopes of technetium#Technetium-93".
• Isotopes_of_technetium wikiPageWikiLinkText "Isotopes of technetium#Technetium-94".
• Isotopes_of_technetium wikiPageWikiLinkText "Isotopes of technetium#Technetium-95".
• Isotopes_of_technetium wikiPageWikiLinkText "Isotopes of technetium#Technetium-96".

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