Periodic  Table of the Elements
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Atomic Number:110
Atomic Symbol:Ds
Atomic Weight:281
Electron Configuration:[Rn] 5f14 6d9 7s1
Total Isotopes19
Total Isomers4
Radioactive Isotopes15
Stable Isotopes0

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Press Release, 16 August 2003
revised 25 August 2003

Man MadeElement 110 is named Darmstadtium.
At the 42nd General Assembly in Ottawa, Canada, the IUPAC Council officially approved the name for element of atomic number 110, to be known as darmstadtium, with symbol Ds.

In 2001, a joint IUPAC-IUPAP Working Party (JWP) confirmed the discovery of element of atomic number 110 and this by the collaboration of Hofmann et al. from the Gesellschaft fur Schwerionenforschung mbH (GSI) in Darmstadt, Germany (Pure Appl. Chem. 73, 959-967 (2001)). The most relevant experiment resulted from the fusion-evaporation using a 62Ni beam on an isotopically enriched 208Pb target, which produced four chains of alpha-emitting nuclides following the presumed formation of 269Uun + n. (S. Hofmann et al., Z. Phys. A350, 277-280 (1995)).

In a soon-to-be-published second report, the JWP has re-endorsed the confirmed synthesis of Ds by the team at GSI led by Sigurd Hofmann.

In accordance with IUPAC procedures, the discoverers at the GSI were invited to propose a name and symbol for the element to the Inorganic Chemistry Division. Hofmann's team proposed the name darmstadtium, with the symbol Ds. This name continues the long-established tradition of naming an element after the place of its discovery.

Sources: International Union of Pure and Applied Chemistry  [IUPAC]
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