Multiple Choice
Copper occurs in an isotopic mixture of 69.09% 63Cu (mass = 62.93 u per atom) and 30.91% 65Cu (mass = 64.93 u per atom) .What is the average atomic mass of copper?
A) 64.00 u
B) 63.55 u
C) 63.45 u
D) 64.31 u
E) 29.00 u
Correct Answer:

Verified
Correct Answer:
Verified
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