Cobalt Properties

     

Cobalt By Brandt, Georg (1735)

NO ATOM
27
NAMA
Cobalt
SIMBOL
Co
BOBOT ATOM
58.9332
BENTUK
Solid
TIPE
Transition Metal
GRUP
9
GRUP LAMA
VIIIB
PERIOD
4
ELEKTRON CONFIG
[Ar] 3d7 4s2
GROUND LEVEL
4F9/2
ENERGI IONISASI
7.881
TITIK LELEH
1495
TITIK DIDIH
2927
STRUKTUR KRISTAL
HCP
Atomic Radius (display)
(m) 125
Metallic Radius (pm)
125
Covalent radius (pm)
126
Atomic Radius (calculated) (pm)
152
Van der Waals Radius, (pm)
#N/A
Electro-negativity (Pauling)
1.88
Density (g/cm3)
8.9
Electron Affinity (kJ/mol)
63.7
Thermal Conductivity, W/(m K)
100
Electrical Resistivity (Ωm)
0.00000006
CAS NO
CAS7440-48-4
OXIDASI STATE
+2,3
PENEMU
Brandt, Georg
TAHUN
1735