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Physics 25 Online
OpenStudy (anonymous):

What information does the atomic mass of an element provide? A. the sum of electrons and protons in an atom B. the difference between the number of protons and electrons C. the number of protons and neutrons in an atom D. the number of isotopes Can somebody please help me ?

OpenStudy (anonymous):

it is C

OpenStudy (shamim):

Atomic mass=protons+neutrons

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