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How many protons, neutrons, and electrons does P^3- have???
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How many protons, neutrons, and electrons does P^3- have???

User Sdesvergez
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P (Phosphorus) has an atomic number of 15. Therefore, it has 15 protons. A charge of -3 indicates that it has gained 3 electrons. Therefore, it has 18 electrons. Hope this helps :)
User Big GH
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