The correct electron configuration of phosphorus (P) is B. 1s22s22p63s23p3.

Here's why:

1. Phosphorus (P) has an atomic number of 15, which means it has 15 electrons in its neutral state.

2. The electron configuration of an atom tells us how the electrons are distributed in the atom's energy levels (or shells). The numbers (1, 2, 3) represent the energy level, the letters (s, p, d) represent the type of orbital, and the superscript numbers represent the number of electrons in that orbital.

3. The first two electrons go into the 1s orbital, so we have 1s2.

4. The next two electrons go into the 2s orbital, so we add 2s2.

5. The next six electrons can fit into the 2p orbital, so we add 2p6.

6. The next two electrons go into the 3s orbital, so we add 3s2.

7. The remaining three electrons go into the 3p orbital, so we add 3p3.

8. So, the electron configuration of phosphorus is 1s22s22p63s23p3.

Question

The correct electron configuration of phosphorus (P) is B. 1s22s22p63s23p3.

Here's why:

1. Phosphorus (P) has an atomic number of 15, which means it has 15 electrons in its neutral state.

2. The electron configuration of an atom tells us how the electrons are distributed in the atom's energy levels (or shells). The numbers (1, 2, 3) represent the energy level, the letters (s, p, d) represent the type of orbital, and the superscript numbers represent the number of electrons in that orbital.

3. The first two electrons go into the 1s orbital, so we have 1s2.

4. The next two electrons go into the 2s orbital, so we add 2s2.

5. The next six electrons can fit into the 2p orbital, so we add 2p6.

6. The next two electrons go into the 3s orbital, so we add 3s2.

7. The remaining three electrons go into the 3p orbital, so we add 3p3.

8. So, the electron configuration of phosphorus is 1s22s22p63s23p3.

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