Flerovium - 114Fl: historical information
Only a very few atoms of flerovium (289114Fl) have ever been made (through a nuclear reaction involving fusing a calcium atom with a plutonium atom) isolation of an observable quantity has never been achieved, and may well never be. The discovery was reported informally in January 1999 following experiments towards the end of December 1998 involving scientists at Dubna (Joint Institute for Nuclear Research) in Russia and the Lawrence Livermore National Laboratory, USA.