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97m Tc is the most stable, with a half-life of 91.0 days (0.097 MeV). [4] This is followed by 95m Tc (half-life: 61 days, 0.038 MeV) and 99m Tc (half-life: 6.04 hours, 0.143 MeV). 99m Tc only emits gamma rays, subsequently decaying to 99 Tc. [7] For isotopes lighter than 98 Tc, the primary decay mode is electron capture to isotopes of molybdenum.
TC 4: Rolling bearings: TC 5: Ferrous metal pipes and metallic fittings: TC 6: Paper, board and pulps: TC 7: Rivets: Disbanded TC 8: Ships and marine technology: TC 9: Shipbuilding details for sea navigation: Disbanded TC 10: Technical product documentation: TC 11: Boilers and pressure vessels: STANDBY TC 12: Quantities and units: TC 13: Shaft ...
A chart or table of nuclides maps the nuclear, or radioactive, behavior of nuclides, as it distinguishes the isotopes of an element.It contrasts with a periodic table, which only maps their chemical behavior, since isotopes (nuclides that are variants of the same element) do not differ chemically to any significant degree, with the exception of hydrogen.
Technetium (99m Tc) sestamibi ("Cardiolite") is widely used for imaging of the heart. Technetium forms a variety of coordination complexes with organic ligands. Many have been well-investigated because of their relevance to nuclear medicine. [54] Technetium forms a variety of compounds with Tc–C bonds, i.e. organotechnetium complexes.
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All primordial nuclides are beta decay stable, with the exception of 40 K, 50 V, 87 Rb, 113 Cd, 115 In, 138 La, 176 Lu, and 187 Re. In addition, 123 Te and 180m Ta have not been observed to decay, but are believed to undergo beta decay with an extremely long half-life (over 10 15 years).
Commission Regulation (EC) No 187-1999 of 27 January 1999 correcting the Spanish, Greek, English and Portuguese language versions of Regulation (EEC) No 1265-69 establishing methods for determining the quality of sugar bought in by intervention agencies