Atomic weights of the elements 2007 (IUPAC Technical Report)

The latest evaluation of atomic weight determinations and other cognate data has warranted five changes for the standard atomic weights of the elements, (E), from those published previously in the Table of Atomic Weights 2005. The revised standard atomic weight of nickel, (Ni), is 58.6934(4); zinc,...

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Bibliographic Details
Published in:Pure and applied chemistry 2009-09, Vol.81 (11), p.2131-2156
Main Authors: Wieser, Michael E., Berglund, Michael
Format: Article
Language:English
Subjects:
argon isotopes
Atomic properties
Atomic weights
Geochemistry
Geochronology
half-lives
IUPAC Inorganic Chemistry Division
Lutetium
Molybdenum
Nickel
Oxygen isotopes
oxygen-17
Ytterbium
Zinc
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Summary:The latest evaluation of atomic weight determinations and other cognate data has warranted five changes for the standard atomic weights of the elements, (E), from those published previously in the Table of Atomic Weights 2005. The revised standard atomic weight of nickel, (Ni), is 58.6934(4); zinc, (Zn), is 65.38(2); molybdenum, (Mo), is 95.96(2); ytterbium, (Yb), is 173.054(5); and lutetium, (Lu), is 174.9668(1). Standard atomic weight tables abridged to four and five significant figures were also evaluated. The Commission-recommended value for the isotope-amount ratio of Ar)/ Ar), which is of importance in geochronology and geochemistry, has been changed to 298.56(31) from 296.03(53) based on new measurements. Atmospheric O is recognized as an international measurement standard, along with Vienna Standard Mean Ocean Water (VSMOW) and Vienna Pee Dee Belemnite (VPDB) carbonate for measurement and reporting of differences in relative oxygen isotope-amount ratios δ( O) and δ( O).
ISSN:0033-4545
1365-3075
DOI:10.1351/PAC-REP-09-08-03