Chemistry, 13.08.2019 05:20 johnsonkia873
The atomic masses of the two stable isotopes of copper 63cu29 (69.17 percent) and 65cu29 (30.83 percent)â are 62.929599 and 64.927793 amu, respectively. calculate the average atomic mass of copper.
Answers: 3
atoms and 30.83 number of 
atoms.
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The atomic masses of the two stable isotopes of copper 63cu29 (69.17 percent) and 65cu29 (30.83 perc...
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