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The atomic number of sodium (Na) is 11. This is also the number of which of the following? atomic mass ionic charge neutrons protons
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The atomic number of sodium (Na) is 11. This is also the number of which of the following?

atomic mass

ionic charge

neutrons

protons

User Leroy Stav
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1 Answer

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D. Protons, Atomic number is the number of protons in an atom.
User Ittiel
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