Question: Please NOTE: I keep getting 43.8, but it is the wrong answer. Antimony, Sb, has two stable isotopes with the following atomic masses (in amu):

Please NOTE: I keep getting 43.8, but it is the wrong answer.

Antimony, Sb, has two stable isotopes with the following atomic masses (in amu): 123Sb=122.904amu121Sb=120.868amu What is the percent abundance of 123Sb ? Do NOT include the \% in your answer. State your answer to 3 significant figures

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