Multiple Choice
Rubidium has two naturally occurring isotopes, 85Rb (84.912 amu) and 87Rb (86.909 amu) .Rubidium-85 is the more abundant isotope (72.17%) .Calculate the average atomic mass of Rb.
A) 86.91 amu
B) 85.47 amu
C) 85.91 amu
D) 86.35 amu
E) 86.00 amu
Correct Answer:
Verified
Correct Answer:
Verified
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