IUPAP/IUPAC Joint Working Party on the Discovery of Elements Validates Claims for Four New Elements

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.