Why is iron a reactive metal?

Iron is considered a reactive metal due to its tendency to easily lose electrons and form positive ions. This reactivity is primarily attributed to its position in the reactivity series of metals, where it is more reactive than many other metals like gold and platinum. When exposed to moisture and oxygen, iron readily oxidizes, leading to the formation of iron oxides, commonly known as rust. Its reactivity makes it susceptible to corrosion and necessitates protective measures in various applications.