How to write the Orbital Diagram for Iron?
Iron (Fe) packs 26 electrons around its nucleus. The inner shells hold 2, then 8 electrons each. Things get interesting next with a partially filled inner shell (3d) holding 6 electrons. Finally, the outermost shell (4s) boasts 2 valence electrons. These outer electrons are the ones that iron uses to bond with other elements, playing a crucial role in its chemistry.
