Discovered | Name | Prepared

Unununium is a metal in Group IB and the 7th period. It is a synthetic element; none occurs naturally on earth.

The element was discovered by scientists at GSI Darmstadt, Germany, on December 20, 1994. The name Unununium and the symbol Uuu are both temporary names suggested by the IUPAC.

Uuu is synthetic, just as are are all other elements beyond U. It was made by bombarding 83Bi with 28Ni.

272Uun has a half-life of less than 0.002 seconds.

Only a few atoms of Uuu have ever been made, and these atoms only exist for a fraction of a second, so little is known about the chemistry of the element. It is expected to have properties similar to Gold.