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Given the information about the isotopes for the imaginary element, Qt, show how the calculation for the average atomic mass would be performed:
Qt-120 is 89% abundant
Qt-118 is 5% abundant
Qt-117 is 2% abundant
Qt-121 is 4% abundant
1 Answer
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- 1 decade agoFavorite Answer
Use weighted mean?
[ (120 x 89) + (118 x 5) + (117 x 2) + (121 x 4) ] / 100 = 119.88
approx 120
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