Below is a question that was sent to my email by a local student that is preparing for Chemistry examination.
Question:
Gallium has a relative atomic mass of 69.8. If only two isotopes of gallium were found to have nucleon numbers 69 and 70 respectively, what is the percentage abundance of gallium-69 that occurs naturally?
A. 20%
B. 40%
C. 60%
D. 80%This will involve some simple mathematical manipulation after you understand the concepts of Isotope and Isotopic Abundance.
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