Skip to main content
U.S. flag

An official website of the United States government

Atomic weights of the elements 2011 (IUPAC Technical Report)

May 24, 2013

The biennial review of atomic-weight determinations and other cognate data has resulted in changes for the standard atomic weights of five elements. The atomic weight of bromine has changed from 79.904(1) to the interval [79.901, 79.907], germanium from 72.63(1) to 72.630(8), indium from 114.818(3) to 114.818(1), magnesium from 24.3050(6) to the interval [24.304, 24.307], and mercury from 200.59(2) to 200.592(3). For bromine and magnesium, assignment of intervals for the new standard atomic weights reflects the common occurrence of variations in the atomic weights of those elements in normal terrestrial materials.

Publication Year 2013
Title Atomic weights of the elements 2011 (IUPAC Technical Report)
DOI 10.1351/PAC-REP-13-03-02
Authors Michael E. Wieser, Norman Holden, Tyler B. Coplen, John K. Böhlke, Michael Berglund, Willi A. Brand, Paul De Bièvre, Manfred Gröning, Robert D. Loss, Juris Meija, Takafumi Hirata, Thomas Prohaska, Ronny Schoenberg, Glenda O'Connor, Thomas Walczyk, Shige Yoneda, Xiang-Kun Zhu
Publication Type Article
Publication Subtype Journal Article
Series Title Pure and Applied Chemistry
Index ID 70046088
Record Source USGS Publications Warehouse
USGS Organization National Research Program - Eastern Branch