The element copper has 29 protons. What is the atomic number of copper?

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asked Apr 20, 2023 in Atomic Number by longboat
edited Apr 23, 2023 by physguru

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+171 votes

answered Apr 23, 2023 by elletheboy

The atomic number of an element is defined as the number of protons in the nucleus of an atom. Since copper (Cu) has 29 protons, the atomic number of copper is 29.

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