Armbruster, Peter

Bohrium - the atomic number is 107 and the chemical symbol is Bh. The name derives from the Danish physicist Niels Bohr, who developed the theory of the electronic structure of the atom. The first synthesis of this element is eredited to the laboratory of the GSI (Center for Heavy-Ion Research) under the leadership of the German scientists Peter Armbruster and Gunther Mhnzenberg at Darmstadt, Germany in 1981, using the reaction ° Bi ( Cr, n) Bh. The longest half-life associated with this unstable element is 17 second Bh. 

Germany, Russia, and the United States were all involved in the synthetic production of element 110 and those elements of higher atomic numbers. This search has been an ongoing international effort by Peter Armbruster s team that in 1994 claimed to have discovered element 110 in their laboratory. (See Properties and Gharacteristics section for more on this discovery.)... 

Shortly after element 110 was discovered in 1994, the team led by Peter Armbruster and Sigurd Hofmann at the Institute for Heavy Ion Research at Darmstadt, Germany, discovered element 111 using their SHIP detection apparatus. One might speculate that the ancient alchemists would be impressed by the production of element 111 by the transmutation of two... 

Bohrium (Unnilseptium) Bh or Uns 1981 (Darmstadt, Germany) Peter Armbruster and Gottfried Munzenberg (both German) 346... 

Dartnstadtium (Ununnilium) Ds or Uun 1994-95 (Berkeley, California) (Darmstadt, Germany) Dubna, Russia Darleane Fioffman (American) Peter Armbruster, Sigurd Hofmann (both German) Russian Team JINR 350... 

Roentgenium Rgor 1994-95 (Darmstadt, Peter Armbruster and Sigurd 352... 

German physicists Peter Armbruster and Gottfried Munzenberg Named for Danish physicist Niels Bohr little is known of its properties. 

German physicists Peter Armbruster and Gottfried Munzenberg... 

Team led by physicist Peter Armbruster Presumably solid white or gray metal produced by bombarding lead with accelerated nickel atoms decays after 0.0005 second. 

German team of physicists at GSI, Darmstadt, Germany led by Peter Armbruster known of its properties. Detected by the presence of a single atom after bombarding lead with accelerated zinc thought to be a metal, but little else is Expected to be solid and radioactive, but has not yet been produced. 

CAS 54037-57-9[. Hassium is a chemical clement in the periodic table that has the symbol Hs and atomic number 108. It is a synthetic element whose most stable isotope is Hs-265. with a half-life of 2 ms. It was first synthesized in 1984 by a German research team led by Peter Armbruster and Gottfried MUnzenbcrg at Ihe Institute for Heavy Ion Research at Darmstadt The name hassium was proposed by them, derived from the... 

The physicist Peter Armbruster has made an empirical systematic description of the probability of fusion of two heavy nuclei at energies near the reaction barrier. These systematics are shown in Figure 15.5. To use this graph, one picks values... 

The table shown here, taken from a book published in 1998, goes as far as the element provisionally named Ununibiium (1-1-2-ium, since its atomic number is 112), created by an international team led by Peter Armbruster in 1996. It had to be created rather than discovered, because all ele-... 

A research team led by Peter Armbruster and Gottfried Miinzen-... 

Named after Lise Meitner, element 109 was first prepared in 1982 by the team of Gottfried Miinzenberg, Peter Armbruster, Fritz Peter HeBberger, Sigurd Hofmann, Klaus Poppensieker, Willibrord Reisdorf, K. Schneider, Karl-Heinz Schmidt, Christoph-Clemens Sahm, and Detlef Vermeulen at the Gesellschaft fur Schwerionenforschung in Darmstadt, Germany. They bombarded bismuth with iron nuclei. After a week of bombardment, they produced one atom of element 109. The name meitnerium was accepted by IUPAC in 1997. 

In 1982, Peter Armbruster (1931- ), Gottfried Munzenbar, and their colleagues at the GSI in Darmstadt in Germany applied the cold... 

Armbruster P, Mhnzenberg G (1989) Sci Am 66 66 Armbruster P (2008) Eur Phys J A 37 159 Batty CJ, Kilvington AI, Weil JL, Newton GWA, Skarestad M, Hemingway JD (1973) Nature 244 429 Bimbot R, Deprun C, Gardes D, Gauvin H, Le Beyec % Lefort M, Peter J, Tamain B (1971) Nature 234 215 Bowman HR et al (1968) Lawrence Berkeley Laboratory Report, UCRL-17989,147... 

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