The mass number of an atom is determined by ___.
1.adding the protons and electrons
2.adding...
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Chemistry, 03.02.2021 17:50 kayyjayy3106
The mass number of an atom is determined by ___.
1.adding the protons and electrons
2.adding the protons and neutrons
3.adding the electrons and neutrons
4. adding the protons, electrons and neutrons
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Answers: 2
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