Journal Archive

Johnson Matthey Technol. Rev., 2023, 67, (2), 235
doi: 10.1595/205651323X16679241042461

Atomic Weights of the Platinum Group of Elements 2021

Received 20th October 2022; Online 29th March 2023

The publication of the 2021 atomic weights (1) leads to the following updated values for the atomic weights of the platinum group of elements: ruthenium 101.07 ± 0.02; rhodium 102.90549 ± 0.00002; palladium 106.42 ± 0.01; osmium 190.23 ± 0.03; iridium 192.217 ± 0.002; platinum 195.084 ± 0.009.


  1. 1.
    T. Prohaska, I. Irrgeher, J. Benefield, J. K. Böhlke, L. A. Chesson, T. B. Coplen, T. Ding, P. J. H. Dunn, M. Gröning, N. E. Holden, H. A. J. Meijer, H. Moossen, A. Possolo, Y. Takahashi, J. Vogl, T. Walczyk, J. Wang, M. E. Weiser, S. Yoneda, X.-K. Zhu and J. Meija, Pure Appl. Chem., 2022, 94, (5), 573 LINK

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