On 28th November 2016, the International Union of Pure and Applied Chemistry announced that the elements 113, 115, 117, and 118 are now formally named.
The name nihonium with the symbol Nh for element 113 was proposed by the discoverers at RIKEN Nishina Center for Accelerator-Based Science (Japan); the name came from Nihon which is one of the two ways to say “Japan” in Japanese, and literally mean “the Land of the Rising Sun”.
The claims for four new elements have been validated in two new reports from the IUPAC/IUPAP Joint Working Party (JWP) and accepted for publication in Pure and Applied Chemistry. The addition of the four, namely elements 113, 115,117, and 118, represents a significant milestone because it completes the seventh row of the Periodic Table. The new elements add to the remarkable progress in extending the periodic table following 114 and 116 validated in 2011, and element 112 validated in 2009.