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2 August, 02:04

The sum of the protons and the neutrons in an atom equals the?

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Answers (2)
  1. 2 August, 02:08
    0
    Mass number

    Explanation:

    The mass number equals to the number of protons and neutrons in an atom.
  2. 2 August, 02:31
    0
    atomic mass or neucleon number
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