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The mass number is used to calculate the number of ___ in one atom of an element. In order to calculate the number of neutrons you must subtract the ___ from the ____
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The mass number is used to calculate the number of ___ in one atom of an element. In order to calculate the number of neutrons you must subtract the ___ from the ____

User Abhilb
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1.) protons + neutrons

2.) protons (or atomic number) from the mass number
User Aral
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