 Flerovium is a superheavy artificial chemical element with symbol Fl and atomic number 114 . It is an extremely radioactive synthetic element . The element is named after the Flerov Laboratory of Nuclear Reactions of the Joint Institute for Nuclear Research in Dubna , Russia , where the element was discovered in 1998 . The name of the laboratory , in turn , honours the Russian physicist Georgy Flyorov ( <unk> in Cyrillic , hence the transliteration of " yo " to " e " ) . The name was adopted by IUPAC on 30 May 2012 . 
