synonymElement 109(No. 109 element) generally refers to 鿏 (the sixth synthetic actinide)
鿏 (meitner ium), metal element,Atomic number109, element symbol Mt,[1]It's the sixth syntheticSuperactinide。In August 1982, the Heavy Ion Research Association of Darmstadt, Federal Germany, used Fe-58 and Bismuth-209 inParticle acceleratorSynthesized inElement 109鿏。half lifeAbout one fifth of a second.
鿏 is a syntheticradioactivityChemical element, itsChemical symbolIt is Mt, and its atomic number is 109,[2]belong totransition metalone of.It may be in metallic state;The appearance is silver white or gray.It is highly radioactive.chemical propertyShall be approximately iridium.fromHeavy ionIt is artificially synthesized by bombardment.
Note: This entry contains new Unihan words, which may be incorrectly displayed as question marks or horizontal lines.
chemical propertyShall be approximately iridium.fromHeavy ionIt is artificially synthesized by bombardment.isotope鿏 - 266 is the most stable isotopehalf lifeFor 0.0038 seconds, the decay product is 𬭛 - 264.
Chinese name of element: the Chinese name of chemical element No. 109 is 鿏鿏鿏鿏鿏鿏鿏鿏鿏鿏鿏鿏鿏ApprovedCommittee validation of chemical termsbranchThe committee will examine and approve it for public use.
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Discoverer
Federal GermanyDarmstadtG. Minzenberg of Heavy Ion Research Institute, etc.
after
1982 Federal Republic of GermanyDarmstadtG. Minzenberg et al. of Heavy Ion Research InstituteacceleratorAcceleratedironIon (Fe) bombardmentbismuthTarget, passing Bi (Fe, n) 109nuclear reaction109 was synthesized.In a week longbombardmentsynthesisexperimentA total of 6 × 10 ions were used, only one new element atom was obtained, and the synthesis reactionsection10 cm;At 5 × 10 seconds after 109 synthesis, 11.10 trillionElectron voltEnergeticAlpha particle。They used this event to successfully identify it in four different ways, especially by measuring the 109 decay chainElement 109Synthesis of:
鿏
name
May 1994IUPAC(International Union of Pure and Applied Chemistry) passed a resolution proposing that element 109 be namedMeitneriumIn memory of nuclear physicist Lise Meitner（Lize Maitner）。[5]
