Chemical Fact Sheet
Element 107
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| Analytical Methods | 200.8 - 6020 |
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Synopsis
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Element 107 - This element, expected to have chemical properties similar to rhenium, was synthesized and unambiguously identified in 1981, using the Universal Linear Accelerator (UNILAC) at the Gesellschaft fur Schwerionenforschung (G.S.I.) in Darmstadt, Germany. The discovery team was led by Armbruster and Munzenberg. The reaction producing the element was proposed and applied earlier by a Dubna Group led by Oganessian in 1976. A target of 209Bi was bombarded by a beamof 54Cr ions. In 1983 experiments at Dubna using the 157-inch cyclotron, produced 262-107 by the reaction 209Bi + 54Cr. The alpha decay of 246Cf, the sixth member in the decay chain of 262-107, served to establish a 1-neutron reaction channel. The IUPAC has recently recommended the name bohrium with symbol Bh for Element 107. The naming of this element is still unsettled. Three isotopes of 107 are now recognized. |
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