Aluminum is a metal that can be Magnetic. It is not rare, but it's not as common as some of the other metals. There are a few reasons why it might be magnetic. Aluminum has a higher than average number of atoms in its nucleus (the part of the atom that carries its nuclear energy), which makes it more susceptible to being magnetized. Additionally, the metal has a higher than average number of electrons in its outer shell, which also makes it more susceptible to being magnetized.