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What acronym did we learn to help use figure out the number of particles in an atom?
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What acronym did we learn to help use figure out the number of particles
in an atom?

User KostasRim
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1 Answer

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To calculate the numbers of subatomic particles in an atom, use its atomic number and mass number:
number of protons = atomic number.
number of electrons = atomic number.
number of neutrons = mass number - atomic number.
User David Fulton
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