Chemistry, 30.11.2020 04:20 avalonr2003

A sample of rubidium contains two different isotopes. 72.15% of the sample if Rubidium-85 while 27.85% is Rubidium-87. What is the average atomic
mass of the sample?

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A sample of rubidium contains two different isotopes. 72.15% of the sample if Rubidium-85 while 27....

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