Periodic Table gets completed, 4 new elements added

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Periodic Table gets completed, 4 new elements added; We all have studied or we have been studying the periodic table. It was always exciting to study it but the seventh row was a suspense. i.e who will discover the remaining 4 and when will they be discovered.

We did not have the seventh row in Chemistry. The four new elements have been discovered by scientists in Japan, Russia, and America. They are the first ones to be added since 2011 other than 114 and 116 which were added that time. According to AP reports, a team of Japanese scientists has met the criteria for naming a new element, the synthetic highly radioactive element 113, more than a dozen years after they began working to create it.

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Periodic Table gets completed, 4 new elements added

Periodic Table gets completed, 4 new elements added
Finally, the missing elements of the Periodic Table added.

A team of Japanese scientists has stated the criteria for naming a new element  a highly synthetic radioactive element 113, according to the AP reports.

Kosuke Morita has been leading the research at the government-affiliated Riken Nishina Center for Accelerator-Based Science. He was notified of the decision by theUS-based International Union of Pure and Applied Chemistry (IUPAC)on December 31, 2015.

“Now that we have conclusively demonstrated the existence of element 113, we plan to look to the unchartered territory of element 119 and beyond,” Morita said in a statement.

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Kosuke Morita demonstrated the existence of element 113
Kosuke Morita demonstrating the existence of element 113

Periodic Table gets completed, 4 new elements added

A joint working group of the IUPAC and International Union of Pure and Applied Physics (IUPAP) have announced their decisions on the recognition of the discoveries of the elements. i.e. 115, 117 and 118.

“Discoveries of atomic elements have often involved competition between scientists. To scientists, this is of greater value than an Olympic gold medal,”  former Riken president and Nobel laureate in chemistry Ryoji Noyori told reporters.

We have Element 113 residing between Copernicium and Flerovium. After announcing its discovery in 2004, a team of many scientists in Russia and the Lawrence Livermore National Laboratory (LLNL)in the US were also fighting for the naming rights for the 113 elements. Isotopes of the element 113 have a very short lifespan, lasting for less than a 1000th of a second thus making it difficult to be discoverable.

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Periodic Table gets completed, 4 new elements added

The scientists have continued research for the last seven years to secure a place for elements 113, 115, 117 and 118 on the periodic table. Until now, the four elements manifested only for a very short span of time – about a thousand of one second – making it very difficult for scientists to prove their existence.

The scientists continued their research for the last seven years to secure and to place the 113, 115, 117 and 118 elements on the periodic table. The very four elements manifested a lifespan of less than 1000th of a second hence making it extremely difficult to be discoverable and prove their existence.

The four elements were given temporary names so far, Elements 113, 115, 117 and 118 were being identified by Uut, Uup, Uus, and Uuo respectively.

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Periodic Table gets completed, 4 new elements added

The periodic table which was designed by Russian chemist Dmitri Mendeleev in 1869 has seen many changes:

  • From 1895 to 1901 the noble gasses including helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn) were added to the periodic table.
  • English physicist Henry Gwyn-Jeffries Moseley in 1914 found out that-
  • each atomic nucleus can be assigned a number according to the number of protons in that atom.
  • The table was again redesigned according to the atomic number of elements rather than .atomic weights.
  •  The elements in the Lanthanide (Rare-earth elements) series were included later in the 19th century.

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