Updated atomic weights: Time to review our table
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Abstract
Despite common belief, atomic weights are not necessarily constants of nature. Scientists’ ability to measure these values is regularly improving, so one would expect that the accuracy of these values should be improving with time. It is the task of the IUPAC (International Union of Pure and Applied Chemistry) Commission on Isotopic Abundances and Atomic Weights (CIAAW) to regularly review atomic-weight determinations and release updated values.
According to an evaluation published in Pure and Applied Chemistry [1], even the most simplified table abridged to four significant digits needs to be updated for the elements selenium and molybdenum. According to the most recent 2015 release of "Atomic Weights of the Elements" [2], another update is needed for ytterbium.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Updated atomic weights: Time to review our table |
| Series title | ChemistryViews Magazine |
| DOI | 10.1002/chemv.201600015 |
| Volume | 05 April 2016 |
| Year Published | 2016 |
| Language | English |
| Publisher | Wiley-VCH & ChemPubSoc Europe |
| Contributing office(s) | National Research Program - Eastern Branch |
| Description | HTML Document |
| Google Analytic Metrics | Metrics page |