The Orbital Magnetic Moment

electrons hold the key to whether material is affected by magnets or isn't. Some elements have an unpaired electron in an orbital just because that's just how it works out. Those unpaired spinning electrons generate a very tiny magnetic field. Iron, for example, has four unpaired electrons that all have the same spin. The ceramic magnets you may have on your fridge door are pretty weak, all things considered. They're made of a mixture of iron oxide and a ceramic composite. These are ferric magnets.