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Chemistry, 07.12.2019 14:31 Tmerchy

The average atomic mass of a sample of an element x is 16.2u. what are the percentages of isotopes x (mass number 16, atomic number 8) and x (mass number 16, atomic number 8) in the sample?

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The average atomic mass of a sample of an element x is 16.2u. what are the percentages of isotopes x...
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