Question

Which one $Fe^{3+},Fe^{2+}$ is more paramagnetic and why?

Answer 1

Fe^(3+) is more paramagnetic because the unpaired electron in Fe^(3+) is more than Fe^(2+)

Answer 2

Paramagnetic compounds:

                  The compounds which contains one or more unpaired electron in the orbitals. These unpaired electrons are attracted towards the poles of magnet and show the paramagnetism.  

Iron [Fe] element has the two unpaired (lone pair) electrons in its orbitals. These electrons gets attracted to the magnets and so, it is paramagnetic.

Fe²⁺ has the even number of electrons i.e., no free electrons and so it is diamagnetic.  

Fe³⁺ has one electron unpaired (lone pair) and so it is paramagnetic.