The existence of these elements has been suspected for quite some time, but required rigorous verification. In 1999, a single atom of element 114 was produced by bombarding plutonium-244 with calcium-48. Element 116 decays into 114, which undergoes alpha decay to become copernicium. The announcement concludes a three year review process, during which time the scientists conducted further experiments to substantiate their claims.
As is traditional, the discoverers of the elements will get the honor of proposing their names. The Dubna team at the Joint Institute for Nuclear Research in Russia has proposed "flerovium" for 114, after Georgy Flyorov, a Soviet scientist who discovered elements. The proposed name for element 116 is "moscovium", after the Russian Moscow region.