Bohrium

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Bohrium ( " eka- rhenium ") is an exclusively artificially produced chemical element with the element symbol Bh and atomic number 107 and is one of the Transactinoiden (7th period d-block ). All Bohrium isotopes are radioactive. It was named after the Danish physicist Niels Bohr ( not to be confused with boron).

Bohrium was the first occasion generated on October 6, 1976 by a Soviet team of researchers, led by Yuri Ts Oganessian at the Institute for Nuclear Research, Dubna in, but not recognized as such. The production is, therefore, officially the Society for Heavy Ion Research in Darmstadt back that the element at March 27, 1981 produced and proposed the name Nielsbohrium. It first bore the name Unnilseptium ( Symbol us ) and since the 1994 recommendation of the IUPAC its current name. It is also called Eka - rhenium.

→ List of Bohriumisotope

Safety

Classifications according to the Hazardous Substances Ordinance are not available because they only include the chemical danger and play a very minor role compared to the risks based on the radioactivity. Even the latter applies only when there is a relevant matter for that amount.

Beryllium Fluorine Sodium Magnesium Aluminium Chlorine Argon Titanium Chromium Manganese Cobalt Nickel Zinc Germanium Arsenic Selenium Bromine Rubidium Yttrium Zirconium Ruthenium Palladium Cadmium Indium Antimony Tellurium Barium Lanthanum Praseodymium Neodymium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Tantalum Tungsten Osmium Iridium Lead Bismuth Polonium Astatine Francium Radium Actinium Neptunium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium Dubnium Darmstadtium Copernicium Group (periodic table) Period (periodic table) Block (periodic table) Period 7 element CAS registry number Half-life Decay energy Systematic element name Hazardous Substances and New Organisms Act 1996 Integrated Authority File
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