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The atomic mass of potassium is 39. if its atomic number is 19, how many neutron are there
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The atomic mass of potassium is 39. if its atomic number is 19, how many neutron are there

User Kilazur
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19. The atomic number indicates how many neutrons there are, and the atomic mass tells us how many protons and neutrons are present within the nucleus of an atom.
User Manvel
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