Discovery of the Element with Atomic Number 112
Discovery of the Element with Atomic Number 112
Priority for the discovery of the element with atomic number 112 has been assigned, in accordance with the agreed criteria, to Gesellschaft für Schwerionenforschung (GSI) (Center for Heavy Ion Research) in Darmstadt, Germany. The discovery evidence was recently reviewed and recognized by a IUPAC/IUPAP joint working party. IUPAC confirmed the recognition of the element in a letter to the head of the discovering team, Sigurd Hofmann.
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| The international team of scientists presents the production of the element with atomic number 112 for the first time <www.gsi.de/portrait/Pressemeldungen/ 10062009-1_e.html>. |
The IUPAC/IUPAP Joint Working Party (JWP) on the priority of claims to the discovery of new elements has reviewed the relevant literature pertaining to several claims. In accordance with the criteria for the discovery of elements previously established by the 1992 IUPAC/IUPAP Transfermium Working Group, and reiterated by the 1999 and 2003 IUPAC/IUPAP JWPs, it was determined that the 1996 and 2002 claims by Hofmann et al. research collaborations for the discovery of the element with atomic number 112 at GSI share in the fulfillment of those criteria.
A synopsis of the relevant experiments and related efforts is presented in a technical report published online in Pure and Applied Chemistry on 25 May 2009. The new element is approximately 277 times heavier than hydrogen, making it the heaviest element in the periodic table.
With the priority for this discovery established, the laboratory at Darmstadt will be invited to propose a name for the super-heavy element. The suggested name will then go through a review process before adoption by the IUPAC Council.
doi:10.1351/PAC-REP-08-03-05 or see IUPAC project 2006-046-1-200
Page last modified 1 July 2009.
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Articles in the same Issue
- Masthead
- From the Editor
- Contents
- Did You Say IUPAC? What’s That?
- Maria Skłodowska Curie–Madame Curie: From Poland to France, from France to Poland
- Colloid and Interface Science: Alive and Kicking at the 30th Anniversary of IACIS
- Nanotechnology: An Answer to the World’s Water Crisis?
- REACH: Toward the Safer Management of Chemicals*
- Sweet Chemistry
- Discovery of the Element with Atomic Number 112
- 2009 Winners of the IUPAC Prizes for Young Chemists Announced
- RSC Acquires ChemSpider
- Marking the Centenary of Houben-Weyl
- PI-IUPAC Award 2009–Call for Nominations
- Election of IUPAC Officers and Bureau Members
- Chemistry Research Funding
- Methods of Measurement and Evaluation of Natural Antioxidant Capacity/Activity
- Development of a Pesticide Ecological Risk Assessment and Training Module
- Basic Guidelines for Polymer Nomenclature
- Laboratory Test Terminology Trial-Run Begins
- Provisional Recommendations
- Thermodynamic and Thermophysical Properties of the Reference Ionic Liquid: 1-Hexyl-3-methylimidazolium bis[(trifluorome-thyl)sulfonyl]amide
- Glossary of Terms Used in Ecotoxicology (IUPAC Recommendations 2009)
- Glossary of Terms Related to Pharmaceutics (IUPAC Recommendations 2009)
- Reference Matrices: An Essential Tool for Testing Extrinsic Substance Properties
- Comprehensive Inter-Laboratory Calibration of Reference Materials for δ18O Versus VSMOW Using Various On-Line High-Temperature Conversion Techniques
- Arsenic Pollution and Remediation: An International Perspective
- Compendium of Polymer Terminology and Nomenclature, IUPAC Recommendations 2008
- The IUPAC Green Book in Japanese
- Sustainable Water
- Biopesticides
- Molecular Environmental Soil Science
- The Transmediterranean Colloquium on Heterocyclic Chemistry
- Green Chemistry
- Mark Your Calendar
