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Meitnerium - Wikipedia, the free encyclopedia
Meitnerium (pronounced /maɪtˈnɜriəm/ ( listen) myet- NAIR -ee-əm ) is a chemical element with the symbol Mt and atomic number 109. It is placed as the heaviest member of group 9 (or ...
en.wikipedia.org/wiki/Meitnerium |
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Brief description: element 109, meitnerium, is a synthetic element that is not present in the environment at all. There is no dispute concerning the name meitnerium for element 109. ... Isolation: only a few atoms of element 109, meitnerium, have ever been made. The first atoms were made through a nuclear reaction...
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One fission event from seven alpha decays of 109 was observed, thus indirectly confirming the existence of isotope 266-109. The IUPAC has recommended adoption of the name meitnerium (Mt) for this element, honoring L. Meitner.
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Hutchinson encyclopedia article about Element 109. Element 109. Information about Element 109 in the Hutchinson encyclopedia. ... During decay, one of the atoms gave rise to a daughter element 109, with an atomic mass of 268, and a granddaughter element 107, with a mass of 264.
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The team confirmed the existence of Element 109 by four independent measurements. The newly formed atom recoiled from the target at predicted velocity and was separted from smaller, faster nuclei by a newly developed velocity filter.
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On August 29, 1982, physicists at the Heavy Ion Research Laboratory, Darmstadt, West Germany made and identified element 109 by bombing a target of 209Bi with accelerated nuclei of 58Fe. If the combined energy of two nuclei is sufficiently high, the repulsive forces between the nuclei can be overcome.
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Chemistry in its element Chemistry World takes a whirlwind tour of the periodic table: each week a leading scientist or author tells the story behind a different element. ... Chemistry in its element logo...
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About This Site; Comments; Help; Links; ... Show Table With: Name; Atomic Number; Atomic Mass; Electron Configuration; Number of Neutrons; Melting Point; ... Element Groups: Alkali Metals; Alkaline Earth Metals; Transition Metals; Other Metals; Metalloids; Non-Metals; Halogens; Noble Gases; Rare Earth Elements;
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Encyclopedia article about Element 109. Information about Element 109 in the Columbia Encyclopedia, Computer Desktop Encyclopedia, computing dictionary. ... On the tenth day of the experiment, one atom was unambiguously identified as an isotope of element 109 with mass number 266 and a half-life half-life, measure of the...
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