The mass of one of the two isotopes of Rhenium that is R 185 e from given average atomic mass and percentage abundance is to be calculated. Concept introduction: Average atomic masses corresponding to the isotopes can be used to mathematically evaluate their percent abundances. This is done as all element’s isotopes do not occur in equivalent ratios. The overall summation of respective abundances of isotopes should be 100 % . This isotopic abundance also finds its use in mass spectrometry.

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Chapter 3, Problem 27E

Interpretation Introduction

Interpretation: The mass of one of the two isotopes of Rhenium that is R185e from given average atomic mass and percentage abundance is to be calculated.

Concept introduction: Average atomic masses corresponding to the isotopes can be used to mathematically evaluate their percent abundances. This is done as all element’s isotopes do not occur in equivalent ratios. The overall summation of respective abundances of isotopes should be 100 % . This isotopic abundance also finds its use in mass spectrometry.

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