Discovered | Name | Prepared

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

The element was discovered by Armbruster and Munzenberg at the Gesellschaft fur Schwerionenforschung at Darmstadt, Germany, in 1984. It was named for the German state, Hesse.

Hs is synthetic, just as are are all other elements beyond U. It was made by bombarding 208Pb with a beam of 58Fe.

Little is known about the chemistry of Hassium. It is expected to have properties similar to Osmium.