Multiple Choice
Rubidium has two naturally occurring isotopes.The atomic weight of Rb is 85.4678 u.If 72.15% of Rb is found as Rb-85 (84.9117 u) ,what is the mass of the other isotope?
A) 0.56 u
B) 85.68 u
C) 86.91 u
D) 86.02 u
E) 83.47 u
Correct Answer:
Verified
Correct Answer:
Verified
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