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What is the mass of an atom that has 2 protons, 3 neutrons, and 2 electrons? 2 3 5 7
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What is the mass of an atom that has 2 protons, 3 neutrons, and 2 electrons? 2 3 5 7

User Kjfletch
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1 Answer

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Mass Number = Proton + Neutron = 2 + 3 = 5
User Ngryman
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