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Chemistry, 29.04.2022 06:30 ivanlopez9852
An element with two isotopes has a tabulated atomic mass of 119.21u. One of the isotopes has a mass of 117u. What is likely to be the mass number of the second isotope?
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An element with two isotopes has a tabulated atomic mass of 119.21u. One of the isotopes has a mass...
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