Multiple Choice
The average atomic weight of copper,which has two naturally occurring isotopes,is 63.5.One of the isotopes has an atomic weight of 62.9 amu and constitutes 69.1% of the copper isotopes.The other isotope has an abundance of 30.9%.The atomic weight (amu) of the second isotope is ________ amu.
A) 63.2
B) 63.8
C) 64.1
D) 64.8
E) 28.1
Correct Answer:
Verified
Correct Answer:
Verified
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