Iron is a chemical element with symbol Fe (from Latin: ferrum) and atomic number 26. It is a metal in the first transition series. It is by mass the most common element on Earth, forming much of Earth's outer and inner core. It is the fourth most common element in the Earth's crust. Iron is a chemical element and a metal. It is the second most common metal on Earth, and the most widely-used metal. It makes up much of the Earth's core, and . Apr 30, 2018 - Iron is a mineral that our bodies need for many functions. For example, iron is part of hemoglobin, a protein which carries oxygen from our lungs throughout our bodies. It helps our muscles store and use oxygen. Iron is also part of many other proteins and enzymes. Aug 22, 2017 - From being a crucial building block of steel to nourishing plants and helping carry oxygen in your blood, iron is always busy helping to sustain . Dec 14, 2017 - Iron is a mineral, and its main purpose is to carry oxygen in the hemoglobin of red blood cells throughout the body so cells can produce energy. Iron also helps remove carbon dioxide. Element Iron (Fe), Group 8, Atomic Number 26, d-block, Mass 55.845. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images. (countable) A tool or appliance made of metal, which is heated and then used to transfer heat to something else; most often a thick piece of metal fitted with a . Iron is a lustrous, ductile, malleable, silver-gray metal (group VIII of the periodic table). It is known to exist in four distinct crystalline forms. Iron rusts in damp air, . Iron: Iron (Fe), chemical element and one of the transition elements, the most-used and cheapest metal. Jul 12, 2011 - Constant fatigue could be a sign that you're low on iron. Learn how iron helps you feel energized and get the facts on iron deficiency.