science & techWikipedia1994 · Darmstadt, Germany
Element 110, darmstadtium, was first made in a German lab in 1994
On 9 November 1994, researchers at the GSI heavy-ion research centre in Darmstadt, Germany, created the first atoms of element 110, later named darmstadtium. It does not occur in nature: scientists make it by firing a beam of nickel ions at a lead target, so the nuclei fuse. The heavy new nucleus is extremely unstable, and the isotope first produced lasted only a tiny fraction of a second before decaying. Because only a few atoms could be made, the element's chemistry has not been measured, and its properties are predicted from its position in the periodic table. It was officially named darmstadtium, symbol Ds, after the city where it was discovered.
Making superheavy elements tests how far the periodic table extends and how stable large nuclei can be. Theorists predict an island of stability where some isotopes could last much longer.
The GSI lab also discovered elements bohrium, hassium, meitnerium, roentgenium and copernicium.
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