The ground state electron configuration of phosphorus is ________.

Question

Quizplus · Accepted Answer

The ground state electron configuration of phosphorus is 1s22s22p63s23p3. This is because phosphorus has 15 electrons, and the Aufbau principle states that electrons fill the lowest energy orbitals first. The 1s, 2s, and 2p orbitals can hold a maximum of 2 electrons each, so the first 10 electrons fill these orbitals. The remaining 5 electrons fill the 3s and 3p orbitals, which can hold a maximum of 2 and 6 electrons, respectively.

The Ground State Electron Configuration of Phosphorus Is ________