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All elements have an atomic mass relative to 12C having a mass of 12.

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βˆ™ 8y ago
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βˆ™ 6mo ago

Copper (Cu) has a relative Atomic Mass because it is an average value that considers the different isotopes of copper and their abundance in nature. The relative atomic mass provides a more accurate representation of the average mass of an atom of copper compared to using just the mass number of the most abundant isotope.

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Q: Why Cu has a relative atomic mass?
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