Element 110 is Named Darmstadtium
Element 110 is Named Darmstadtium
On 16 August 2003 at the 42nd General Assembly in Ottawa, Canada, the IUPAC Council officially approved the name for the element of atomic number 110, to be known as darmstadtium, with symbol Ds. The proposal was recommended by the Inorganic Chemistry Division. In 2001, a joint IUPAC-IUPAP Working Party (JWP) had confirmed the discovery of element number 110 by the collaboration of Hofmann et al. from the Gesellschaft für 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 269110 + n. [S. Hofman et al., Z. Phys. A350, 277-280 (1995)].
bombardment of lead with nickel ions
20882Pb + 6228Ni –––>269110 (0.17 ms) + 10n
Since then, the JWP has re-examined the discovery of 110, in view of the obligatory re-assessment brought on by revelations at the Berkeley [Y.A. Lazarev et al., Phys. Rev. C54, 620-624 (1996)] and GSI laboratories [S. Hofmann et al., E. Phys. J. A14, 147-157 (2002)] of some apparently fabricated or partially modified decay chains. In its soon to be published report, the JWP re-endorses the confirmed synthesis of element 110 by the team at GSI led by S. Hofmann.
In accordance with IUPAC procedures, the discoverers at the GSI were invited to propose a name and symbol for element 110. They proposed the name darmstadtium, with the symbol Ds. Thus continues the long-established tradition of naming an element after the place of its discovery.
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Articles in the same Issue
- Masthead
- From the Editor
- Contents
- Treasurer's Column
- Science Communication For All
- Role Models in Chemistry - Nelson Leonard
- Why Become an Affiliate?
- A New Look at Special Topics and an Evolving Policy for Pure and Applied Chemistry
- Element 110 is Named Darmstadtium
- Hendrik van Eck Medal Awarded to IUPAC President
- IOCD Marks 20th Anniversary by Presenting Pierre Crabbé Award to Three African Scientists
- The Chemical Society of Japan Celebrates 125 Years
- Mostafa El-Sayed Celebrates 70th Birthday
- Reviewing Proposals for NSF Grants
- Letters from Readers
- Fundamental Toxicology for Chemists
- Organization of the Chemistry Clearing House
- Provisional Recommendations
- The Atomic Weights of the Elements: Review 2000 (IUPAC Technical Report)
- Critical Review of Analytical Applications of Mössbauer Spectroscopy Illustrated by Mineralogical and Geological Examples (IUPAC Technical Report)
- Critical Assessment: Use of Supersonic Jet Spectrometry for Complex Mixture Analysis (IUPAC Technical Report)
- Significance of Impurities in the Safety Evaluation of Crop Protection Products
- Biodiversity: Biomolecular Aspects of Biodiversity and Innovative Utilization
- Genetically Modified Foods for Human Health and Nutrition: The Scientific Basis for Benefit/Risk Assessment
- Chemical Education International
- The Science of Spectroscopy
- Heterocyclic Chemistry
- Chromatography and Separations in Biosciences
- Polymer Properties
- Macromolecule-Metal Complexes
- Medicinal Chemistry
- Polymers
- Polymer Characterization
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