The latest version of the Periodic Table of the Elements was published on May 4th, 2022 by the International Union of Pure and Applied Chem...
The latest version of the Periodic Table of the Elements was published on May 4th, 2022 by the International Union of Pure and Applied Chemistry (IUPAC) organization.
Click here to download this new version.
This new version "includes the most recent abridged standard atomic weight values released by the IUPAC Commission on Isotopic Abundances and Atomic Weights (CIAAW), compiled as part of the 2021 Table of Standard Atomic Weights 2021. For elements that lack isotopes with a characteristic isotopic abundance in natural terrestrial samples, the mass number of the nuclide with the longest confirmed half-life is listed between square brackets. See PAC (AOP 4 May 2022; https://doi.org/10.1515/pac-2019-0603) for full details or visit Commission II.1 @ciaaw.org"