What type of metal is known for its magnetic properties?

Iron is well-known for its magnetic properties due to the alignment of its atomic structure, which allows it to become magnetized in the presence of a magnetic field. The domain structure of iron means that it can retain its magnetization even after the external magnetic influence is removed, which is a characteristic feature of ferromagnetic materials. This ability to be magnetized is why iron is commonly used in applications that require strong magnets, such as in electric motors, transformers, and magnetic storage media.

Other metals like copper, gold, and aluminum do not exhibit significant magnetic properties. While they can conduct electricity well, their atomic structure does not allow for the same type of domain alignment seen in iron, and as a result, they do not become magnetized in the same way. This distinction underscores why iron is particularly valued in contexts where magnetism is a key requirement.