Chromium


 * Element Name:** Chromium


 * Element Symbol:** Cr


 * Atomic Mass:** 52[[image:Chromium.png width="216" height="288" align="right"]]


 * Atomic Number:** 24


 * Protons:** 24


 * Electrons:** 24


 * Discovery:** Discovery made by Louis Nicolas Vauquelin in 1797.


 * How It Was Named:** Chromium comes from the Greek word "chrōma", meaning colour. Many of Chromium's compounds are intensely colored.


 * State of Matter:** Solid


 * Melting Point:** 1907°C


 * Boiling Point:** 2671°C


 * Characteristics:** Looks like stainless steel, shows antiferromagnetic ordering at room temperature (and below).


 * Uses:** Metal coating used to prevent rust, dyes, pigments, tanning, refractory matierial.

Traces of Chromium can be found in many gemstones, such as ruby or emerald. Chromium is the 21st most abundant element in Earth's crust.
 * Interesting Facts:** Weopons from the Qin Dynasty were discovered coated in Chromium to prevent rust.

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