Question: Use the References to access important values if needed for this question. If a sample of copper contains 1.78104 atoms of copper-63 and 7.97103 atoms

Use the References to access important values if needed for this question. If a sample of copper contains 1.78104 atoms of copper-63 and 7.97103 atoms of copper-65, what is the percentage of copper-63 atoms in the sample? 5 queston attempts remaining

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