The element with the symbol Fe is iron. Originating from the Latin word "ferrum," iron is a transition metal that is essential for life and is the most widely used metal in construction and manufacturing. It has a distinctive metallic luster and is known for its strength and malleability. Iron plays a critical role in various biological processes, including oxygen transport in the blood through hemoglobin. Its abundance in the Earth's crust makes it an important resource, with applications ranging from steel production to magnetic materials. Iron's versatility and significance throughout history highlight its central role in both industry and biology.