Hassium is element 108, a transition metal of the d block, in group 8, period 7. Its ground-state configuration is [Rn] 5f14 6d6 7s2, and it usually shows the oxidation states 0.
It was discovered in 1984, by Armbruster and Munzenber.
Name origin: Hesse, Germany, where the element was first synthesized.
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