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What's the Difference between Mass Number and Atomic Weight?
Автор: Tyler DeWitt
Загружено: 2012-10-01
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What's the difference between mass number and atomic weight? Mass number is the number of protons and neutrons in an atom, and it tells us about the mass of the atom in amu, or atomic mass units. Atomic weight is the average mass of all the isotopes of a certain type. It is a weighted average that takes into account the abundances of all of the different isotopes.
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