An element has three isotopes with the following properties:...

Question Analysis
This question tests the student's ability to calculate the average atomic mass of an element with three isotopes.

Key Concept Explanation
The average atomic mass is the weighted average of the masses of all naturally occurring isotopes, where the weights are given by their natural abundances.

Step-by-step Solution
1. Convert the natural abundances to fractional abundances:
Isotope 1:
Isotope 2:
Isotope 3:
2. Calculate the contribution of each isotope to the average atomic mass:
Contribution of Isotope 1: amu
Contribution of Isotope 2:

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