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Equal to the number of protons in an
Equal to the number of protons in an pictures 5
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Equal to the number of protons in
Equal to the number of protons in an
equal to the number of protons neutrons in an atom
equal to the number of protons in an atom of an element
equal to the number of protons in an element
equal to the number of protons in a neutral atom
equal to the number of protons in an atom
