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What should the mass of a pb-208 atom be

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A Pb-208 atom contains 82 protons, 82 electrons, and 126 neutrons. The mass of a proton is 1.0073 u, an electron is 0.00055 u, and a neutron is 1.0087 u. Based on these numbers, what should the mass of a Pb-208 atom be? Show your work

Reference no: EM132732415

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