A certain element consists of two stable isotopes. The first has a mass of 68.9 amu and a percent natural abundance of 60.4 %. The second has a mass of 70.9 amu and a percent natural abundance of 39.6 %. What is the atomic weight of the element? amu

Chemistry: Matter and Change
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Chapter4: The Structure Of The Atom
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A certain element consists of two stable isotopes.
The first has a mass of 68.9 amu and a percent natural abundance of 60.4 %.
The second has a mass of 70.9 amu and a percent natural abundance of 39.6 %.
What is the atomic weight of the element?
amu
Transcribed Image Text:A certain element consists of two stable isotopes. The first has a mass of 68.9 amu and a percent natural abundance of 60.4 %. The second has a mass of 70.9 amu and a percent natural abundance of 39.6 %. What is the atomic weight of the element? amu
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