On January 3rd 2016, researchers announced that they had confirmed the addition of four new elements to the periodic table. The four elements, which complete the seventh row of the scientific chart, were verified and then added by the International Union of Pure and Applied Chemistry. The elements are 113, 115, 117, and 118 and have all met IUPAC's criteria, and they are the first elements to be added to the periodic table since 2011.
The four new elements are all using temporary names until they receive their official names over the next several months. A team of Russian-American scientists from the Joint Institute of Nuclear Research in Dubnia and Lawrence Livermore National Laboratory are responsible for the discovery of elements 115, 117, and 118. Their working names are, Ununpentium (Uup), Ununseptium (Uus), and Ununoctium (Uuo), respectively.
Element 113, which was discovered by a Japanese team at Riken Institute in Japan, has the working name of Ununtrium (Uut). All of the new substances are man made and are what are considered to be what is known as superheavy elements. All four only exist for fractions of a second before decaying into other elements. The four new elements were made by slamming lighter nuclei into each other, and then tracking their radioactive decay.
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