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Ununquadium

At the end of December 1998, through a nuclear reaction, researchers isolated element 114, a highly radioactive element. To synthesize ununquadium, Russian scientists used plutonium and calcium isotopes supplied by the Lawrence Livermore National Laboratory in the United States.

Presently, the synthesis of element 114 has yet to be ratified, and no applications have been attributed to ununquadium.