(CNN-LOS ALAMOS NATIONAL LIBRARY) – Chemistry textbooks are officially out of date, as four new elements will soon be added to the scientific periodic table.
Elements 113, 115, 117 and 118 have been formally recognized Dec. 30 by the International Union of Pure and Applied Chemistry – the U.S. based world authority on chemistry.
The organization’s announcement means the seventh row of the periodic table is finally complete.
It’s the first time the table, which categorizes chemical elements according to their atomic number, has been updated since 2011.
