Description
Chromium is a very hard and shiny silvery metal and has many colourful compounds. A lot of these are quite toxic. Chromium(VI), e.g. as CrO2, is a very dangerous environmental toxin. Elemental chromium is widely used for planting for optical reasons and corrosion protection. Chromium is added to steel to make it stainless.
Overview
General Properties
Atomic Properties
Electron Shell Configuration
K2 L8 M13 N1
Electron Configuration
1s2 2s1 2p6 3s2 3p6 4s1 3d5
Oxidation States
-2
2
3
4
6
Atomic Structure
Crystall Structure
Body-Centered Cubic
Space Group Name
Fm_ 3m
Lattice Angles
90°
90°
90°
Lattice Constant (Pm)
291
291
291
Thermodynamic Properties
Material Property
Color
Silver
Molar Volume
7.232•10-6
Bulk Modulus
160
Brinnel Hardness
1120
Density
7190
Liquid Density
6300
Vickers Hardness
1060
Poisson Ratio
0.21
Reactivity
Electromagnetic property
Electrical Type
Conductor
Magnetic Type
Antiferromagnetic
Resistivity
1.3•10-7
Mass Magnetic Suspectibility
4.45•10-8
Volume Magnetic Suspectibility
3.177•10-4
Neuclear Properties
Neutron Mass Absorption
0.0021
Known Isotopes
42Cr
43Cr
44Cr
45Cr
46Cr
47Cr
48Cr
49Cr
50Cr
51Cr
52Cr
53Cr
54Cr
55Cr
56Cr
57Cr
58Cr
59Cr
60Cr
61Cr
62Cr
63Cr
64Cr
65Cr
66Cr
67Cr
Stable Isotopes
50Cr
52Cr
53Cr
54Cr
