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Amanda Foreman

on 7 May 2010

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Transcript of Iron

Shana Metcalf
Amanda Foreman
Presenting: 5/6/10
•atomic number: 26
•atomic mass: 55.845 amu
•classification of element: transition metal
•group: 8

•Has been used for at least 5000 years
•No one knows how it was discovered or who discovered it because it has been around since ancient times
•Though some say that iron was a gift from the Gods, others say that iron came from meteoric sources. (the origin is unknown)
•Iron was rare and considered valuable in the 15th century (a lot more valuable than gold at the time), and many robbers often stole iron utensils, ornaments, and beads because the metal was thought of as precious jewelry.
•As it became easier to make, iron became cheaper, which allowed it to be used in many things such as casting and molding.
•melting point: 1538°C or 2800°F
•boiling point: 2861°C or 5182°F
•Iron is a ductile, heavy, malleable and relatively soft metal.
•Iron in its pure form is very reactive and when in contact with moist air, it rusts.
•A crystalline solid
•Of all 14 know iron isotopes, only 3 are stable ones.
Color: silvery/gray
•State of matter at room temperature: solid
•Density: 7.874 grams per cubic centimeter
•Ability to conduct thermal energy: moderately good conductor of heat
•Ability to conduct electricity: moderately good conductor of electricity
•Luster: metallic
•Is the substance that helps carry oxygen with red blood cells
•It’s used in steel
•Alnico (used in electric guitars and loud speakers)
•Cast iron (used in metal bridges)
•Stainless steel (Jewelry, medical tools, tableware)
•Wrought iron is more resistant to rusting than most metals so it is more commonly used for outdoor seating, decorative fences, arbors, and trellises.
•Powdered iron is often used in heat packs which can be found in the gauze that’s inserted into ski boots/ snowboard boots and gloves.
•Iron can be found in meats, potatoes, vegetables, and whole meal products (almost all foods, even Cheerios!)
•Iron is very important for the human body: it helps transport oxygen through our bodies.
•The name Iron originates from “ferrum” in Latin and “ferro” in Italian.
•The sun and many stars contain a lot of iron.

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