Physics, 27.06.2019 02:00, vanessa7676

An element has three stable isotopes. one has a mass number of 63 and an abundance of 50%. the second has a mass number of 65 and an abundance of 30%. the third has a mass number of 67 and an abundance of 20%. calculate the relative atomic mass of this element. give your answer to one decimal place.

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An element has three stable isotopes. one has a mass number of 63 and an abundance of 50%. the secon...