The element represented by the symbol 'Fe' is iron. Iron is a transition metal known for its strength, malleability, and magnetic properties. It is the most abundant element (by mass) on Earth after oxygen and is primarily found in the Earth's core and crust. In industry, iron is mainly used to produce steel, an alloy that incorporates various elements to enhance its properties. Iron plays a vital role in biological systems as well, being an essential component of hemoglobin in red blood cells, necessary for transporting oxygen throughout the body.