Assertion: osmium's isotope | /r/HasProperty | published by aston
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text: In September of 1937 he submitted two papers to the Physical Review: one on the isotopes of mercury, xenon, krypton, beryllium, iodine, astatine, and cesium using the Dempster-style analyzer that he had just built and the other a letter on the discovery of a new isotope of osmium that also proposed corrections to the values for the relative abundance of its isotopes published by Aston (33,111,112).