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Publicly Available Published by De Gruyter May 31, 2016

Atomic Weights of the Elements 2013 (IUPAC Technical Report)

From the journal Chemistry International

Juris Meija, et al.

Pure and Applied Chemistry, 2016

Volume 88, Issue 3, pp. 265–291

The 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, molybdenum, selenium, and thorium), while the revision of 15 others is based on the 2012 Atomic Mass Evaluation (aluminium, arsenic, beryllium, caesium, cobalt, fluorine, gold, holmium, manganese, niobium, phosphorus, praseodymium, scandium, thulium, and yttrium). The Commission on Isotopic Abundances and Atomic Weights ( also recommends the standard value for the natural terrestrial uranium isotope ratio, N(238U)/N(235U) = 137.8(1).

Published Online: 2016-5-31
Published in Print: 2016-5-1

©2016 by Walter de Gruyter Berlin/Boston

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