Dubna reaffirmed the latest element 117
The research team at the Laboratory of Nuclear Reaction called Flerov (FLNR) in the famous scientific city of Dubna, Russia, has just stated: They have successfully replicated the experiment of synthesizing chemical elements 117 of the Periodic table of chemical elements (Mendeleev table).
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The world's largest heavy ion accelerator at the Nuclear Reaction Laboratory called Flerov, Dubna. The experiment of creating a new element 117 has been carried out here.
In this lab, the super-heavy element 117 was first built in 2010. However, then the International Association of Basic Chemistry and Applications (IUPAC), the highest authority authorized to recognize transmissions proving, requires authors to recycle this element before being recognized as a new element.
According to RIANovosti, on June 25, 2012, a senior official of the Dubna Institute, Andrei Popeko, said: After successfully repeating the results of their previous findings, the research team in Dubna has completed the procedure. petition to consider recognizing the new element.
The scientific discovery of element 117 is a collection of numbers with many international researchers from Russian and American laboratories and universities, mainly the Nuclear Reaction Laboratory named Flerov (FLNR) and Livermore National Laboratory named Lawrence.
Experimental synthesis of 117 was conducted on the world's most advanced equipment, costing hundreds of millions of dollars.
It is FLNR's strongest type U-400 ion accelerator that emits energy ions of Calcium Ca48 to 252MeV. It is a stele consisting of 22mg of Berkelium radioactive material produced on a large reactor at Oak Ridge after 250 days of screening, followed by 90 days of separation and cleaning Bk.
The experiment fired a burst of Ca48 ions onto Berkelium beer that lasted 70 days (according to Physical Review Letters), the analysis proceeded in both Dubna and Livermore and was followed by processing and synthesizing research results. In this massive experiment, the two isotopes of 117 element are 293117 and 294117 have been created.
Thus, with the successful discovery of element 117, the international Dubna-Livermore has achieved impressive scientific achievements with a total of six heaviest new elements in the periodic table of elements found by means. artificial method; including 113, 114, 115, 116, 117, and 118.
Since 1940, there have been 26 new elements behind the uranium element (also known as super-uranium elements) added to the Mendeleev table, extending human understanding of the physical world, contribute to evaluating the correctness, challenge and expanding the theory of atomic nuclear structure.
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