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. If 69.15% exists as 63Cu with an atomic mass of 62.92, then what is the atomic mass of the second isotope?
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. If 69.15% exists as 63Cu with an atomic mass of 62.92, then what is the atomic mass of the second isotope?

User Wuzseen
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Answer: 64.8

Explanation:Please see attachment for explanation

. If 69.15% exists as 63Cu with an atomic mass of 62.92, then what is the atomic mass-example-1
User Jon F Hancock
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