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Electrons in a neutral gold atom.
56
9
atomic mass
79
14
atomic number
12
19
Neutrons in a sodium atom.
56
9
atomic mass
79
14
atomic number
12
19
Tells the number of protons in an atom.
56
9
atomic mass
79
14
atomic number
12
19
Protons in a barium atom.
56
9
atomic mass
79
14
atomic number
12
19
Protons in a potassium atom.
56
9
atomic mass
79
14
atomic number
12
19
Mass of a nitrogen atom.
56
9
atomic mass
79
14
atomic number
12
19
Tells the mass of the nucleus.
56
9
atomic mass
79
14
atomic number
12
19
Electrons in a neutral fluorine atom.
56
9
atomic mass
79
14
atomic number
12
19
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