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How many protons does an atom of Iodine (I), #53, have if it has an atomic mass of 127?
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How many protons does an atom of Iodine (I), #53, have if it has an atomic mass of 127?

User Umberto Manganiello
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Iodine has 53 protons. The atomic number is always the same as the number of protons that element has.
User Ryan Tate
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