INORGANIC
CHEMISTRY DIVISION
COMMISSION ON NOMENCLATURE OF INORGANIC CHEMISTRY*
On the discovery of the elements 110-112 (IUPAC Technical Report)
P. J. Karol*1,
H. Nakahara2, B. W. Petley3, and E. Vogt4
1IUPAC: Past Chair of Commission V.7 (Radiochemistry
and Nuclear Techniques), Department of Chemistry, Carnegie Mellon University,
Pittsburgh, PA 15213, USA; 2IUPAC: Titular Member, Commission V.7 (Radiochemistry
and Nuclear Techniques), Chemistry Department, Tokyo Metropolitan University,
Tokyo 192-03, Japan; 3IUPAP: Chair of Commission C2 (Symbols, Units,
Nomenclature, Atomic Masses and Fundamental Constants), Centre for Basic,
Thermal, and Length Metrology, National Physical Laboratory, Teddington,
Middlesex TW11 OLW, UK; 4IUPAP: Chair of Commission C12 (Nuclear Physics),
TRIUMF, Vancouver, BC, V6T 1W5, Canada
Abstract: The IUPAC/IUPAP joint working party on the priority
of claims to the discovery of elements 110, 111, and 112 has reviewed
the relevant literature pertaining to the several claims. In accordance
with the criteria for the discovery of elements, previously established
by the 1992 IUPAC/IUPAP Transfermium Working Group, it was determined
that the claim by the Hofmann et al. research collaboration for the
discovery of element 110 at GSI has fulfilled those criteria. For elements
111 and 112, the collaboration of Hofmann et al. produced high-quality
data with plausible interpretations, but confirmation by further results
is needed to assign priority of discovery for these elements. The working
party was not convinced that claims of other collaborations have satisfied
the discovery criteria.
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