13-11-2016
Chemistry

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What is the difference between mass number and atomic number

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gentledescent gentledescent

13-11-2016

Mass number is the number of protons and neutrons in an atom.
Atomic mass is the average mass of all the isotopes of a certain type.

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TheBlueFox TheBlueFox

11-07-2019

Atomic number is the number of protons that are inside that atom. This helps identify which element an atom is.

Atomic mass is the number of protons and neutrons inside an atom.

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