Phosphorus has an atomic number of 15, meaning its neutral atom has 15 electrons. To determine the electronic configuration of the P3- ion, you'll start with the neutral atom's configuration and then add three more electrons to represent the extra negative charge.
The electronic configuration of neutral phosphorus (P) is: 1s² 2s² 2p⁶ 3s² 3p³
Adding three more electrons for the P3- ion means it gains three more electrons, leading to the configuration: 1s² 2s² 2p⁶ 3s² 3p⁶, which is the same as the noble gas neon (Ne).
Answers & Comments
Answer:
Phosphorus has an atomic number of 15, meaning its neutral atom has 15 electrons. To determine the electronic configuration of the P3- ion, you'll start with the neutral atom's configuration and then add three more electrons to represent the extra negative charge.
The electronic configuration of neutral phosphorus (P) is: 1s² 2s² 2p⁶ 3s² 3p³
Adding three more electrons for the P3- ion means it gains three more electrons, leading to the configuration: 1s² 2s² 2p⁶ 3s² 3p⁶, which is the same as the noble gas neon (Ne).