The International Union of Pure and Applied Chemistry (IUPAC), has officially approved the names of four new elements to be added to the periodic table. The new elements, Nihonium, Moscovium, Tennessine, and Oganesson, are now officially part of the periodic table, in spots 113, 115, 117, and 118, respectively.
Back in January the IUPAC, which handles the naming of new elements, officially confirmed that the four new elements had been found.
In June, the organization put these four names to a vote. Now those names have been accepted and are going on the periodic table. Three of the elements, Nihonium, Moscovium, and Tennessine, were named after the places the were discovered, namely Japan (Nihon), Moscow, and Tennessee. The fourth, Oganesson, was named after Russian nuclear scientist Yuri Oganessian.
With the addition of these four elements, the seventh row of the periodic table has finally been completed. Any new elements discovered in the future will require an additional row.