Atom - Atomic Mass

3 Min
Created at 09 / 2016
9.4   Informative
8.9   Entertaining
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what is and how to calculate the average atomic mass?

atomic mass is the mass of an atom of a chemical element expressed in atomic mass units. It is approximately equivalent to the number of protons and neutrons in the atom (the mass number) or to the average number allowing for the relative abundances of different isotopes.
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