# Question #3a0d4

Most common experiences with magnets involve ferromagnetism. The name derives from the term "ferrous" which simply refers to the element iron (chemical symbol $F e$). Said again, alloys which contain iron generally respond to magnetic fields by becoming magnetized. In some cases, this magnetization is permanent (or mostly permanent).
Interesting footnote: some other elements and alloys are ferrous but contain no iron. Nickel and Cobalt are ferrous. Chromium Oxide can be ferrous ($C r {O}_{2}$).