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Each chemical element has an atomic number and a mass number. the atomic number refers to the number of ___________________the element has, while the mass number refers to the number of ________________
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Each chemical element has an atomic number and a mass number. the atomic number refers to the number of ___________________the element has, while the mass number refers to the number of ________________ the element has.

User DaveShaw
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The atomic number tells us the number of protons and electrons.
The atomic mass tells us the weight of the nucleus, which is the amount of protons and neutrons
User MilkyWayJoe
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