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The mass number of an atom is equal to which of the following? Question 4 options: A.the number of protons plus the number of electrons in an atom B.the number of electrons circling the nucleus of an atom
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The mass number of an atom is equal to which of the following?

Question 4 options:

A.the number of protons plus the number of electrons in an atom

B.the number of electrons circling the nucleus of an atom

C.the number of protons plus the number of neutrons in a nucleus

D.the number of protons in a nucleus

User Kissaki
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the answer is c, the number of protons plus the number of neutrons in a nucleus

User WoutervD
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