Cesium has 39 known isotopes ranging from mass 112 to 151. If a sample of cesium containing only 133Cs (132.905 amu) and 135Cs (134.906 amu) has an average atomic mass of 134.3, what is the percent abundance of 133Cs in the sample?

The average atomic mass of any particular element which exists in two or more isotopic forms, can be…

Answered: Cesium has 39 known isotopes ranging…

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter2: Atoms, Molecules, And Ions

Section: Chapter Questions

Problem 2.43QE

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Cesium has 39 known isotopes ranging from mass 112 to 151. If a sample of cesium containing only ¹³³Cs (132.905 amu) and ¹³⁵Cs (134.906 amu) has an average atomic mass of 134.3, what is the percent abundance of ¹³³Cs in the sample?

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