2 Heaviest Metals Added to Periodic Table

The unnamed elements 114 and 116 are both extremely radioactive and, with respective atomic mass unit values of 289 and 292, are now heaviest table-members.Scientists from the international overseeing committees of physics and chemistry have added two new elements to the periodic table. A joint effort  by the International Union of Pure and Applied Chemistry (IUPAC) and the International Union of Pure and Applied Physics (IUPAP) required three years to approve the addition. Other periodic table hopefuls 113, 115 and 118 are still pending approval.Physics and chemistry have added two new elements to the periodic table. A joint effort.  The elements are temporarily labeled ununquadium and ununhexium, pending final naming.