Facts about the Classification of the Element Chromium
Chromium is classified as a "Transition Metal" which are located in Groups 3 - 12 of the Periodic Table. An Element classified as a Transition Metals is ductile, malleable, and able to conduct electricity and heat.

Brief Facts about the Discovery and History of the Element Chromium
Chromium was discovered by Louis Vauquelin in 1797 who was also able to detect traces of chromium in precious gems, such as ruby and emerald. A lead chromate named as Siberian Red Lead was found by Johann Gottlob Lehmann in 1761. Peter Simon Pallas found that the Siberian Red Lead mineral that had very useful properties as a pigment in paints.

Occurrence of the element Chromium
Obtained from Chromite

Common Uses of Chromium
Dyes and paints
Stainless steel
Metallurgy
Chrome plating
Green rouge metal polish
Magnetic tape
Hexavalent chromium
Chromium trioxide

The Properties of the Element Chromium
Name of Element : Chromium
Symbol of Element : Cr
Atomic Number of Chromium : 24
Atomic Mass: 51.9961 amu
Melting Point: 1857.0 °C - 2130.15 °K
Boiling Point: 2672.0 °C - 2945.15 °K
Number of Protons/Electrons in Chromium : 24
Number of Neutrons in Chromium : 28
Crystal Structure: Cubic
Density @ 293 K: 7.19 g/cm3
Color of Chromium : steel-gray