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Potassium has a mass number of 40 and an atomic number of 19. how many protons does it have?

Potassium has a mass number of 40 and an atomic number of 19. how many protons does it have?
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Potassium has a mass number of 40 and an atomic number of 19. how many protons does it have?

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User AwesomeHunter
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1 Answer

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19. The atomic number is the same as protons and electrons unless it have a - or a + charge the electrons are going to change
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User Dward
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