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Isotope word question clarification
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[QUOTE="Charles Link, post: 6062111, member: 583509"] The mass of the atom is just slightly less than the masses of the particles that came together to make the atom. It is impossible to say exactly what the mass of a given proton or neutron is in the atom. As a collective lot, they have lost mass. In coming together, energy is released, and that energy ## E=mc^2 ## accounts for the loss of mass. The mass change is small, but it is not zero. ## \\ ## And the answer to (b) is not worded carefully, in that they should be more precise in saying the masses of the protons and neutrons "as determined prior to being in the isotope". [/QUOTE]
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Isotope word question clarification
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