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Chemistry, 21.12.2020 21:30, larapoghosyan91
15) The element X has three naturally occurring isotopes. The isotopic massed (amu) and % abundances of the isotopes are given in the table below. the average atomic mass of the element is _ amu.
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15) The element X has three naturally occurring isotopes. The isotopic massed (amu) and % abundances...
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