John Schreifels @GMU: What is the change in mass of 204Pb wh…
John Schreifels @GMU: What is the change in mass of 204Pb when it is formed from protons, electrons and neutrons if the atom has a mass of 203.97302 amu? The masses of the proton, electron and neutron are 1.00728 amu, 0.000549 amu and 1.00867 amu, respectively.
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