Copper has how many neutrons?

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Discover the NOVA Hunting the Elements Test. Engage with interactive flashcards and multiple choice questions. Prepare effectively for your assessment!

Multiple Choice

Copper has how many neutrons?

Explanation:
Neutrons are found by subtracting the atomic number from the mass number. Copper has 29 protons (its atomic number). The average mass number of natural copper is about 63.5 due to its two main isotopes, Cu-63 and Cu-65. Subtracting 29 from 63.5 gives about 34.5 neutrons, which rounds to roughly 35. So copper typically has around 35 neutrons. The other numbers don’t match copper’s proton count or its typical neutron range.

Neutrons are found by subtracting the atomic number from the mass number. Copper has 29 protons (its atomic number). The average mass number of natural copper is about 63.5 due to its two main isotopes, Cu-63 and Cu-65. Subtracting 29 from 63.5 gives about 34.5 neutrons, which rounds to roughly 35. So copper typically has around 35 neutrons. The other numbers don’t match copper’s proton count or its typical neutron range.

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