Chemistry
Chemistry, 06.10.2020 20:01, spellsaltoniza

An atom's mass number indicates a
the number of protons in the nucleus of an atom.
b
the number of neutrons in the nucleus of an atom.
c
the sum of the neutrons and electrons in the nucleus of an atom.
d
the sum of the neutrons and protons in the nucleus of an atom.
e
the charge of that atom's ion.

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