Chemists have waited a long time to find a new element and, now, researchers in Japan, Russia and the US have discovered four. The four new elements will be added to the periodic table. They are the first elements to be added since 2011, when elements 114 and 116 were included. The new elements, all very radioactive, complete the seventh row of the periodic table.
Who discovered the new elements?
Research teams from three different countries Research teams from four different countries Research teams from seven different countries Dmitri Mendeleev