Hassium
108th chemical element of the periodic table, symbol Hs. Its most stable isotope is 265Hs, with a half-life of 2ms. It is a synthetic element. It was discovered in 1984 by a German research team led by P. Armbruster and G. Münzenberg at the Institute for Heavy Ion Research at Darmstadt. The name hassium was proposed by them, derived from the Latin name for the German state of Hesse where the institute is located.
There was a dispute as to what the elements from 101 to 109 were to be called; thus IUPAC adopted Unniloctium (symbol Uno) as a temporary name for this element. In 1994 a committee of IUPAC recommended that element 108 be named hahnium. The name hassium was adopted internationally, however, in 1997.
External Link:
Los Alamos National Laboratory's Chemistry Division: Periodic Table -
Hassium