Which chemical element is named after the German city of Darmstadt?

Darmstadtium is the chemical element named after the German city of Darmstadt.

Darmstadtium has the atomic number 110 and the chemical symbol Ds. It was first created in 1994 by scientists at the GSI Helmholtz Centre for Heavy Ion Research in Darmstadt, Germany, by fusing nickel nuclei with lead nuclei.

Only a few atoms were produced in the initial experiments, and darmstadtium is highly radioactive. Because it has no stable isotopes and exists only briefly in laboratories, scientists know much less about its ordinary physical properties than they do about common elements.

The name was approved by the International Union of Pure and Applied Chemistry in 2003. Several elements are named for places: hassium refers to Hesse, dubnium to Dubna and berkelium to Berkeley. Darmstadtium is part of the transactinide group of superheavy elements.