The atomic mass of Cu (Copper) is 63.546 amu (atomic mass unit).
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Copper is a metal element. Atomic mass of it is 64.
The relative atomic mass of Cu (copper) is approximately 63.55. This value is based on the average atomic mass of naturally occurring copper isotopes.
Suren the answer be chlorine? Atomic chlorine?
No, "Cu" is not an element. It is the chemical symbol for the element copper, which is a metallic element with the atomic number 29.
The atomic mass of magnesium is approximately 24.305 amu (atomic mass units).