All Sources -
Updated Media sources (1) About encyclopedia.com content Print Topic Share Topic
views updated

hassium (symbol Hs) Synthetic, radioactive transactinide element. It is a very unstable element that is produced by high-energy atomic collisions. It was discovered in 1984 by German physicists Peter Armbruster and Gottfried Münzenberg. Named after the Latin Hassia for ‘Germany’, it was formerly named hahnium. Properties: at.no. 108; r.a.m. 277.