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Atomic number and mass number?

In: Chemistry, Genetics, Elements and Compounds [Edit categories]

Answer:

atomic mass is the number of protons in an atom
mass number is the number of protons plus neutrons in an atom

First answer by Fattycakess. Last edit by Fattycakess. Contributor trust: 1 [recommend contributor ]. Question popularity: 1 [recommend question].

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