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Name Chromium
Symbol Cr
Atomic number 24
Atomic mass 52.0 amu
Normal state solid
Classification Transition metal
Crystal structure Cubic
Color Gray
Date of discovery 1797
Name of discoverer Louis Vauquelin
Name origin From the Greek word chrôma (color)
Uses Stainless steel
Obtained from Chromite

Chromium (Cr) is a chemical element found at number 24 on the periodic table. It is a hard, lustrous gray transition metal used in plating processes and the production of stainless steel.

Chromium is generally found in nature in the mineral chromite (FeO - Cr2O3), but can also be found in crocoite (PbCrO4). It is also an essential mineral for life; a deficiency will lead to a reduction in glucose tolerance, as several chromium (III) compounds have been found to enhance the effectiveness of insulin. However, some chromates are hazardous to one's health when injested/inhaled.