The amount of electrons that aren’t paired inside the electron configuration of an iron atom is 4. This attribute arises from the association of electrons in iron’s 3d orbitals, following Hund’s rule which dictates the filling of orbitals to maximise spin multiplicity, resulting in the unpaired state.
The variety of unpaired electrons dictates a lot of iron’s chemical and magnetic properties. The presence of unpaired electrons contributes to iron’s paramagnetism, which means it’s interested in exterior magnetic fields. Traditionally, this attribute is exploited in numerous industrial purposes such because the creation of magnetic storage gadgets and catalysts.