Chromium

=Chromium= By: Josh


 * Atomic Number:** 24[[image:chromium.jpg width="327" height="327" align="right"]]


 * Protons:** 24


 * Electrons:** 24


 * Neutrons:** 28


 * Average Atomic Mass:** 51.9961 amu

Chromium was discovered after Vauquelin had done an experiment mixing hydrochloric acid and crocoite producing chromium oxide. It wasn't until the following year when Vauquelin heated chromium oxide in a charcoal oven creating the element know today as Chromium.
 * Discovery:** Chromium was discovered in 1797 by Louis Vauquelin.


 * Names:** Chromium comes from the Greek word "chroma" meaning color. Chromium oxide, made of mostly Chromium, play's a big part in it's name.


 * Uses:** Chromium is used in stainless steel to create items such as armor plates, safes, ball bearings and cutting tools. Chromium is also used and found in dyes and paints, Chrome plating, wheel trim on cars and magnetic tape. Chromium is found naturally in rocks, soil, plants, animals and people.


 * Interesting Facts**: Chromium is a transition metal that has a great luster and is quite shiny as well. Chromium is a steel gray shade of color and is hard but brittle. Chromium's melting point is 3,374 degrees Fahrenheit. It's boiling point is 4,840 degrees Fahrenheit. Pure chromium is worth $32 per 100 grams and rarely occurs naturally. There is also such thing as dull chromium where the surface is very rough, bumpy and unreflective. Chromium can be mixed together with other metals to create a compound. The most common metal chromium is mixed with is steel to create stainless steel used to make dishwashers and refrigerators. Pure stainless steel is made 20 percent of Chromium.

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 * Video:**

Photos: > > >
 * Sources**
 * Videos: http://www.youtube.com/watch?v=lzRb4zmGvNU&feature=player_embedded
 * Sources: http://www.chemicalelements.com/elements/cr.html, http://education.jlab.org/itselemental/ele024.html