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Chemistry, 13.10.2020 09:01 zero101

A certain element exists as three different isotopes. 24.1% of all the isotopes have a mass of 75.23 amu, 48.7% have a mass of 74.61 amu, and 27.2% have a mass of 75.20 amu. What is the average atomic mass of this element?

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A certain element exists as three different isotopes. 24.1% of all the isotopes have a mass of 75.23...
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