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The combined number of the protons and the neutrons in an atom is the ________. A. isotopic number. B. chemical number. C. mass number. D. atomic number.
The combined number of the protons and the neutrons in an atom is the: C. mass number.
Expert answered|andrewpallarca|Points 17081|
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Asked 11/29/2012 10:15:12 AM
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