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Element Darmstadtium (Uununnilium), Ds


The date and time of element 110, Darmstadtium (symbol Ds) discovery is November 9, 1994 in 16:39 at the Institute for Heavy Ion Research (Gesellschaft fur Schwerionenforschung, GSI) in Darmstadt, Germany. The only one atom was produced at the beginning.

The discovered isotope mass number was 269 (269 times heavier than hydrogen atom). It was produced by fusion of nickel and lead atoms accelerated in UNILAC accelerator of GSI. Only one atom of Darmstadtium was prepared during very long time after fusion of billions of nickel and lead atoms. IUPAC confirmed the discovery in 2001. The trivial name proposed by IUPAC was Uununnilium (symbol Uun). Nonofficial names for this element are eka-platinum, because of the belonging to the platinum group and policium, because of the Germany police number 110.


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