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copper - Occurrence, uses, and properties

Which stable isotopes occur naturally in copper?

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A periodic table element box for copper shows its symbol Cu, atomic number 29, atomic weight 63.546, electron configuration, and name. Icons indicate copper is a solid, weakly basic transition metal with face-centered cubic crystal structure. A key explains the symbols and color coding. — copper Properties of copper.

Natural copper is a mixture of two stable isotopes: copper-63, which accounts for 69.15 percent of the element, and copper-65, which makes up the remaining 30.85 percent.1