QuestionJuly 1, 2025

Which of the following has the greatest number of electrons? P^3- P^2+ p P^3+ P^2-

Which of the following has the greatest number of electrons? P^3- P^2+ p P^3+ P^2-
Which of the following has the greatest number of electrons?
P^3-
P^2+
p
P^3+
P^2-

Solution
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Answer

P^{3-} has the greatest number of electrons with 18 electrons. Explanation 1. Determine the number of electrons in a neutral phosphorus atom Phosphorus (P) has an atomic number of 15, so it has 15 electrons in its neutral state. 2. Calculate the number of electrons for each ion - P^{3-}: Gains 3 electrons, total = 15 + 3 = 18 electrons. - P^{2+}: Loses 2 electrons, total = 15 - 2 = 13 electrons. - P: Neutral, total = 15 electrons. - P^{3+}: Loses 3 electrons, total = 15 - 3 = 12 electrons. - P^{2-}: Gains 2 electrons, total = 15 + 2 = 17 electrons.

Explanation

1. Determine the number of electrons in a neutral phosphorus atom<br /> Phosphorus (P) has an atomic number of 15, so it has 15 electrons in its neutral state.<br /><br />2. Calculate the number of electrons for each ion<br /> - $P^{3-}$: Gains 3 electrons, total = 15 + 3 = 18 electrons.<br /> - $P^{2+}$: Loses 2 electrons, total = 15 - 2 = 13 electrons.<br /> - $P$: Neutral, total = 15 electrons.<br /> - $P^{3+}$: Loses 3 electrons, total = 15 - 3 = 12 electrons.<br /> - $P^{2-}$: Gains 2 electrons, total = 15 + 2 = 17 electrons.
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