Chromium Facts
Chemical Symbol Cr
Atomic number 24
Atomic weight 51.996
Solid
Silver-white hard metal
Has no smell
Has no taste
The word hydrogen comes from Greek word "chroma", meaning color.
Many of chromium's compounds are brightly coloured.
Naturally occurring chromium is composed of three stable isotopes.
Trivalent chromium (Cr(III)) is required in trace amounts for sugar and lipid metabolism.
In larger amounts and in different forms, chromium can be toxic and carcinogenic. For example, hexavalent chromium (Cr(VI)) is toxic.