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19 votes
19 votes
Calculate the average atomic mass of rubidium from the data below. Show your work.

Isotope
Rubidium-85
Rubidium-87
Mass
84.9118
86.9092
I
Percent abundance
72.2%
27.8%

User DerekR
by
3.1k points

1 Answer

17 votes
17 votes

Answer:

avg is 85.4678 atomic mass unit

User Soto
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