Atomic weights of the elements 2013 (IUPAC Technical Report)-Reference-Cited by-同舟云学术

Atomic weights of the elements 2013 (IUPAC Technical Report)

Published:2016-03-01 Issue:3 Volume:88 Page:265-291
ISSN:1365-3075
Container-title:Pure and Applied Chemistry
language:
Short-container-title:

Author:

Meija Juris¹,Coplen Tyler B.²,Berglund Michael³,Brand Willi A.⁴,De Bièvre Paul⁵,Gröning Manfred⁶,Holden Norman E.⁷,Irrgeher Johanna⁸,Loss Robert D.⁹,Walczyk Thomas¹⁰,Prohaska Thomas¹¹

Affiliation:

1. 1National Research Council Canada, Ottawa, Canada

2. 2U.S. Geological Survey, Reston, VA, USA

3. 3Institute for Reference Materials and Measurements, Geel, Belgium

4. 4Max Planck Institute for Biogeochemistry, Jena, Germany

5. 5Independent Consultant on Metrology in Chemistry, Belgium

6. 6International Atomic Energy Agency, Seibersdorf, Austria

7. 7Brookhaven National Laboratory, Upton, New York, NY, USA

8. 8Helmholtz-Centre for Materials and Coastal Research Geesthacht, Germany

9. 9Department of Applied Physics, Curtin University of Technology, Perth, Australia

10. 10Department of Chemistry (Science) and Department of Biochemistry (Medicine), National University of Singapore (NUS), Singapore

11. 11Department of Chemistry, University of Natural Resources and Life Sciences, Vienna, Austria

Abstract

AbstractThe biennial review of atomic-weight determinations and other cognate data has resulted in changes for the standard atomic weights of 19 elements. The standard atomic weights of four elements have been revised based on recent determinations of isotopic abundances in natural terrestrial materials:

cadmium to 112.414(4) from 112.411(8),

molybdenum to 95.95(1) from 95.96(2),

selenium to 78.971(8) from 78.96(3), and

thorium to 232.0377(4) from 232.038 06(2).

The Commission on Isotopic Abundances and Atomic Weights (ciaaw.org) also revised the standard atomic weights of fifteen elements based on the 2012 Atomic Mass Evaluation:

aluminium (aluminum) to 26.981 5385(7) from 26.981 5386(8),

arsenic to 74.921 595(6) from 74.921 60(2),

beryllium to 9.012 1831(5) from 9.012 182(3),

caesium (cesium) to 132.905 451 96(6) from 132.905 4519(2),

cobalt to 58.933 194(4) from 58.933 195(5),

fluorine to 18.998 403 163(6) from 18.998 4032(5),

gold to 196.966 569(5) from 196.966 569(4),

holmium to 164.930 33(2) from 164.930 32(2),

manganese to 54.938 044(3) from 54.938 045(5),

niobium to 92.906 37(2) from 92.906 38(2),

phosphorus to 30.973 761 998(5) from 30.973 762(2),

praseodymium to 140.907 66(2) from 140.907 65(2),

scandium to 44.955 908(5) from 44.955 912(6),

thulium to 168.934 22(2) from 168.934 21(2), and

yttrium to 88.905 84(2) from 88.905 85(2).

The Commission also recommends the standard value for the natural terrestrial uranium isotope ratio, N(238U)/N(235U)=137.8(1).

Publisher

Walter de Gruyter GmbH

Subject

General Chemical Engineering,General Chemistry

Link

https://www.degruyter.com/document/doi/10.1515/pac-2015-0305/pdf

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