24
51.996 u
Cr
Chromium
Transition Metal
Atomic Structure
Physical State
Group
6
Period
4
Block
d
Electron Configuration
[Ar] 3d⁵ 4s¹
Physical Properties
Atomic Mass:
51.996 u
Electronegativity:
1.66
Atomic Radius:
189 pm
Ionization Energy:
6.767 eV
Density:
7.15 g/cm³
Melting Point:
2180 K
Boiling Point:
2944 K
Historical Information
Discovered By:
Louis Nicolas Vauquelin
Year Discovered:
1794