Antimony (Sb) has two stable isotopes. 121Sb has a mass of 120.90 amu. 123Sb has a mass of 122.90 amu. Answer the following questions on a separate
piece of paper and upload the document.
a. Write an equation to describe the relationship between the percent
abundance of 121Sb and the percent abundance of 123Sb. Assume that no
other isotopes exist.
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b. Write an equation that you can use to calculate the percent abundance of
each isotope.
c. What is antimony's atomic mass? Use the periodic table.
d. Calculate the percent abundance for each isotope of antimony.