 In December 2015, the Joint Working Party of the International Union of Pure and Applied Chemistry (IUPAC) and the International Union of Pure and Applied Physics, which evaluates claims of discovery of new elements, recognized the element and assigned the priority to the Russian–American team.In June 2016, the IUPAC published a declaration stating that the discoverers had suggested the name "tennessine" after Tennessee, United States.In November 2016, they officially adopted the name "tennessine".