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2 definitions found
 for darmstadtium
From WordNet (r) 3.0 (2006) :

  darmstadtium
      n 1: a radioactive transuranic element [syn: darmstadtium,
           Ds, element 110, atomic number 110]

From The Elements (07Nov00) :

  darmstadtium
  Symbol: Ds
  Atomic number: 110
  Atmic weight: 281
  Darmstadtium, formerly known as ununnilium, is placed as the heaviest
  member of group 10 but a sufficiently stable isotope is not known which
  would allow chemical experiments to confirm its place. This synthetic
  element is one of the so-called super-heavy atoms and was first
  synthesized
  in 1994. The longest-lived and heaviest isotope known is 281Ds with
  a half-life of ~10 s although a possible isomer, 281bDs has an
  unconfirmed
  half-life of about 4 minutes.
  Element 110 was first given the temporary name ununnilium (symbol Uun).
  Once recognized as discoverers, the team at GSI considered the names
  darmstadtium (Ds) and wixhausium (Wi) for element 110. They decided on
  the former and named the element after the city near the place of its
  discovery, Darmstadt and not the suburb Wixhausen itself. The new name
  was officially recommended by IUPAC on August 16, 2003.
  

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