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23 May, 15:07

What particles contribute to the mass of an atom?

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Answers (2)
  1. 23 May, 15:24
    0
    Protons and Neutrons

    Explanation:

    Since the nucleus of an atom contribute to the mass of atom and protons and neutrons are present inside so proton and neutrons contribute to the mass of an atom. Electron is not so heavy particle so it won't contribute to the mass of an atom.
  2. 23 May, 15:36
    0
    Protons and Neutrons
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