Hassium (eka-osmium) occurs as chemical element in the periodic table that has the symbol Hs & atomic number 108. These are the synthetic element whose most stable isotope is Hs-265, sustaining the half-life of 2 ms.

History
It was first synthesized in 1984 by a German locate team led by Peter Armbruster and Gottfried Münzenberg at the Institute for Heavy Ion Research at Darmstadt. A title element 108 was proposed by a babies, from either the Latin name for the German state of Hessen where the institute is placed.

There was an element naming controversy as to what the elements from either 101 to 109 were to become known as; so IUPAC adopted unniloctium (symbol Uno) as a temporary, systematic element name for this element. Within 1994 a committee of IUPAC recommended that element 108 become known as db. A title hs was adopted internationally, still, around 1997.