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The _____ number of an atom is equal to the sum of the protons and _____ in the nucleus of the atom.

User Szkra
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Answer:

atomic, neutrons

Step-by-step explanation:

the mass number of an atom is equal to the sum of the protons and neutrons in the nucleus of the atom.

The _____ number of an atom is equal to the sum of the protons and _____ in the nucleus-example-1
User Cleder
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