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Copper Has Two Naturally Occurring Isotopes

Question 88

Multiple Choice

Copper has two naturally occurring isotopes. Cu-63 has a mass of 62.939 amu and Cu-65 has a mass of 64.928 amu. Based on the atomic mass of copper, which isotope has a higher fractional abundance?


A) Cu-63
B) Cu-65
C) Cu-63 and Cu-65 have equal fractional abundances.
D) Insufficient data
E) Fractional abundance is independent of isotopes.

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