1. Neutral Iron (Fe):
* Iron has an atomic number of 26, meaning it has 26 protons and 26 electrons.
* Its electron configuration is: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁶
2. Iron(II) Ion (Fe²⁺):
* Iron(II) forms by losing two electrons.
* These electrons are lost from the highest energy level, which is the 4s orbital.
* The electron configuration of Fe²⁺ becomes: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁶
Therefore, the electron configuration of Iron(II) is: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁶
