What is the electron configuration for Fe³⁺?

Question

Quizplus · Accepted Answer

The electron configuration can be broken down into the following subshells: 1s, 2s, 2p, 3s, 3p, 3d, 4s. Fe (iron) has an electron configuration of [Ar] 3d6 4s2. S (sulfur) has an electron configuration of [Ne] 3s2 3p4. P (phosphorus) has an electron configuration of [Ne] 3s2 3p3. The superscript on each element represents the number of electrons in that particular subshell. The positive superscript on S represents a loss of 1 electron, meaning it has a total of 5 electrons in its outermost subshells. Similarly, the positive superscript on P represents a loss of 13 electrons, meaning it has a total of 5 electrons in its outermost subshells. Therefore, the electron configuration for Fe³⁺ is: 1s2 2s2 2p6 3s2 3p6 3d6 4s2 (Fe), 1s2 2s2 2p6 3s2 3p3 (P), 1s2 2s2 2p6 3s2 3p3 (S with lost electron). The overall electron configuration would then be: 1s2 2s2 2p6 3s2 3p6 3d6 4s2 3p3 3s2 3p2 After arranging the subshells in order, the best choice is D.

What Is the Electron Configuration for Fe3+

What Is the Electron Configuration for Fe³⁺