'darmstadtium' definitions:
Definition of 'darmstadtium'
(from WordNet)
noun
Definition of 'darmstadtium'
From: Elements
- 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.