What is the difference between atomic number and atomic mass, and what do they tell you about the atom

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Chemistry

Roberson

23 December, 11:20

What is the difference between atomic number and atomic mass, and what do they tell you about the atom

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Everett Barron · Answer 1

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 mass is the average mass of all the isotopes of a certain type