The International Union of Pure and Applied Chemistry officially approved names for the elements – which sit at slot 114 and 116, respectively — on May 31. They have until now gone by the temporary monikers ununquadium and ununhexium.
Both elements are man-made, having first been synthesized at the Joint Institute of Nuclear Research in Dubna, Russia, in 1998 and 2000. The discoveries were confirmed with further work at Lawrence Livermore National Laboratory in California. Suggested names for the two elements have been pending since they were submitted to the IUPAC last year.” (Wired Science).