Chromium
|
|
Cr
|
In situ availability:
|
|
Necessity:
|
|
Atomic number:
|
24
|
Atomic mass:
|
51.9961
|
group:
|
6
|
period:
|
4
|
normal phase:
|
Solid
|
series:
|
Transition Metals
|
density:
|
|
melting point:
|
|
boiling point:
|
|
{{{aprior}}} ← N/A → {{{anext}}}
|
V ← Cr → Mn
|
{{{bprior}}} ← Mo → {{{bnext}}}
|
Atomic radius (pm):
|
{{{radius}}}
|
Bohr radius (pm):
|
{{{bohr}}}
|
Covalent radius (pm):
|
{{{covalent}}}
|
Van der Waals radius (pm):
|
{{{vdwr}}}
|
ionic radius (pm):
|
{{{irad}}}
|
1st ion potential (eV):
|
{{{ipot}}}
|
Electron Configuration
|
{{{econfig}}}
|
Electrons Per Shell
|
{{{eshell}}}
|
Electronegativity:
|
{{{enega}}}
|
Electron Affinity:
|
{{{eaffin}}}
|
Oxidation states:
|
{{{oxstat}}}
|
Magnetism:
|
{{{magn}}}
|
Crystal structure:
|
{{{cryst}}}
|
"Chromium use in iron, steel, and nonferrous alloys enhances hardenability and resistance to corrosion and oxidation. The use of chromium to produce stainless steel and nonferrous alloys are two of its more important applications. Other applications are in alloy steel, plating of metals, pigments, leather processing, catalysts, surface treatments, and refractories." - USGS Chromium Statistics and Information[1]
The most important and abundant ore of chromium is chromite.