Wednesday, 6 January 2016

4 New element Discovered to occupy the Periodic Table

The period table- The spaces Marked yellow is where the new elements will occupy and will replace the temporary "Uu" placeholder names
Scienece news reports that four elements have gained their permanent seats in the periodic table which means the 7th role in the periodic table is officially full

The official discovery of elements 113, 115, 117 and 118 means that all 118 elements in the periodic table’s first seven rows have been found on Earth or produced in the lab. The four new elements will soon get names replacing the temporary “Uu” placeholder name

On December 30, the International Union of Pure and Applied Chemistry announced that a Russian-U.S. collaboration had attained sufficient evidence to claim the discovery of elements 115, 117 and 118. IUPAC awarded credit for the discovery of element 113 to scientists at RIKEN in Wako, Japan (SN Online: 9/27/12). Both groups synthesized the elements by slamming lighter nuclei into each other and tracking the decay of the radioactive superheavy elements that followed.

Researchers at the Joint Institute for Nuclear Research in Dubna, Russia, and Lawrence Livermore National Laboratory in California, which are among the institutions credited with elements 115, 117 and 118, had also laid claim to element 113 after experiments in 2004 (SN: 2/7/04, p. 84) and 2007. But garnering recognition for the three other elements softened the blow, says Dawn Shaughnessy, who leads the experimental nuclear and radiochemistry group at Livermore. “I’m personally very happy with IUPAC’s decision,” she says.


Published reports on the newly recognized elements will appear in early 2016, says IUPAC executive director Lynn Soby. Official recognition of the elements means that their discoverers earn the right to suggest names and symbols. Element 113 will be the first element discovered and named by researchers in Asia.

Science news

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