Occurrence and principles of extraction of chromium:Atomic mass: 51.99 Valency: 0,1,2,3,4,5,6Atomic number: 24 Symbol: Cr
Position in the periodic table: Period Number -4, Group Number -6.L.N. Vanquelin, a French chemist introduced a new element in 1797, while observing a mineral found in Siberia. It was termed as chromium since it forms colored compounds [Greek word - chroma - color]Occurrence:
Metallic chromium does not take place in the native state.Ores:
The significant ore of chromium is chrome ore or Chromite, FeOCr2O3The main ore of chromium is chromite ore.Alloys of chromium:
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