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September 4, 2015

Homework Help: physical science 8th grade

Posted by help on Wednesday, November 4, 2009 at 5:34pm.

Copper has 2 known isotopes: ^63CU atomic mass= 62.9298 and ^65 CU atomic mass=64.9278. The average atomic mass of copper is 63.546 amu. Calculate the fraction(percent) of each of the 2 isotopes of copper

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