The periodic table is being updated for the first time in four years. On Nov. 28, the scientific names for four synthetic elements were officially announced. Element 113, previously known as ununtrium, is now named nihonium after the Japanese word for Japan, where the element was synthesized. Previously ununpentium, element 115 was first synthesized in Dubna, Russia, a town in the Moscow Oblast. Thus, element 115 was named moscovium. Element 117, previously ununseptium, was named tennessine for Tennessee, where the Oak Ridge National Laboratory is located. Element 118, previously ununoctium, was named oganesson after Yuri Oganessian, a leading physicist in synthesizing super-heavy elements.