Chemistry Nexus
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Discovery of the Elements with Atomic Number 114 and 116
A news reports from IUPAC confirms the discoveries of elements 114 and 116. Proposals for the names of the two elements will follow in due course.
Discovery of Elements with Atomic Number 114 and 116
Priority for the discovery of the elements with atomic number 114 and 116 has been assigned, in accordance with the agreed criteria, to collaborative work between scientists from the Joint Institute for Nuclear Research in Dubna, Russia and from Lawrence Livermore, California, USA (the Dubna-Livermore collaborations).
WebElements June 5th, 2011
Posted In: Chemistry, Group 14 elements, Group 16 elements, Nuclear chemistry, p-Block, Radioactive elements
Synthesis of a new element with atomic number Z=117
International team discovers element 117
A new chemical element has been added to the Periodic Table: A paper on the discovery of element 117 has been accepted for publication (5 April 2010) in Physical Review Letters.1
Abstract
The discovery of a new chemical element with atomic number Z=117 is reported. The isotopes 293117 and 294117 were produced in fusion reactions between 48Ca and 249Bk.
WebElements April 12th, 2010
Posted In: Chemistry, Group 17 elements, Nuclear chemistry, p-Block, Radioactive elements
Tantalising news about element 117
117Notes from the 31st meeting of PAC for Nuclear Physics seems to suggest that a claim for element 117 (at the base of the halogen column) may come in the coming weeks and months. It’s not very clear which isotopes may have been formed so watch this space.
IV. Experiments on the synthesis of element 117
The PAC heard with great interest the report on the results of the experiment dedicated to the synthesis of element 117 in the 48Ca + 249Bk reaction.
WebElements March 10th, 2010
Posted In: Group 17 elements, p-Block, Radioactive elements
Independent Verification of Element 114 (ununquadium)
Workers in the USA verify the production of element 114 in the reaction of 244-MeV 48Ca with 242Pu. Two chains of time- and position-correlated decays were assigned to 286114 and 287114. The observed decay modes, half-lives, and decay energies agree with the original claims of researchers at the Joint Institute for Nuclear Research at Dubna in Russia.
WebElements December 15th, 2009
Posted In: Chemistry, Group 14 elements, Nuclear chemistry, p-Block, Radioactive elements