PhysicsWeb - Darmstadt gets credit for new elements

PhysicsWeb - Darmstadt gets credit for new elements: "The discovery of element 111 has been officially credited to the GSI laboratory in Darmstadt, Germany, by a joint working party set up by the International Union of Pure and Applied Chemistry (IUPAC) and the sister union for physics (IUPAP). IUPAC has also officially approved a proposal from GSI that element 110 - which was also discovered at the German lab - should be known as darmstadtium (Ds).

Sigurd Hofmann and co-workers first created element 111 in December 1994 by colliding a beam of nickel-64 nuclei with a target made of bismuth-209. The GSI team observed three chains of events that signalled the production and decay of nuclei that contained 111 protons and 161 neutrons."