What is the difference between mass number and atomic number?

1 Answer
Stefan V. · Madi · Loveta Love
Oct 30, 2015

Mass number is the number of protons plus the number of neutrons in an atom, while the atomic number is just the number of protons.

Explanation:

https://sites.google.com/site/ellesmerealevelchemistry/module-2-foundations-in-chemistry/2-1-atoms-and-reactions/2-1-1-atomic-structure-and-isotopes/2-1-1-b-sub-atomic-particles-mass-atomic-numbershttps://sites.google.com/site/ellesmerealevelchemistry/module-2-foundations-in-chemistry/2-1-atoms-and-reactions/2-1-1-atomic-structure-and-isotopes/2-1-1-b-sub-atomic-particles-mass-atomic-numbers

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