Chemistry, 01.10.2021 22:00 jenreluao1321
What is the mass number of an atom equal to?
the number of protons plus the number of electrons in an atom
the number of protons plus the number of neutrons in a nucleus
the number of electrons circling the nucleus of an atom
the number of protons in a nucleus
Answers: 3
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What is the mass number of an atom equal to?
the number of protons plus the number of electrons in...
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