Flerovium is one of the heaviest elements in the periodic table. It has oxidation states predicted to be +1, +2, +4, and +6. It is theorized that it may behave as a more massive homologue of lead, with reduced reactivity. It was synthesized in 1999 in the Flerov Laboratory of Nuclear Reactions at the JINR in Dubna, Russia. The isotope Flerovium 289 has the longest half-life of this element which is 2.1 seconds. 

Flerovium has no uses outside of research.