How do you determine the number of neutrons in an atom?

How to determine the number of neutrons that an atom contains if you know the mass number and atomic number?

  • Answer:

    If you know the atomic number and the mass number, you can simply determine the number of neutrons using this formula: Mass number = (number of protons) + (number of neutrons) Or, Number of neutrons = (mass number) - (number of protons)

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If you know the atomic number and the mass number, you can simply determine the number of neutrons using this formula: Mass number = (number of protons) + (number of neutrons) Or, Number of neutrons = (mass number) - (number of protons)

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