Hafnium Properties

     

Hafnium By Coster, Dirk & De Hevesy, George Charles (1923)

NO ATOM
72
NAMA
Hafnium
SIMBOL
Hf
BOBOT ATOM
178.49
BENTUK
Solid
TIPE
Transition Metal
GRUP
4
GRUP LAMA
IVB
PERIOD
6
ELEKTRON CONFIG
[Xe] 4f14 5d2 6s2
GROUND LEVEL
3F2
ENERGI IONISASI
6.8251
TITIK LELEH
2233
TITIK DIDIH
4603
STRUKTUR KRISTAL
HCP
Atomic Radius (display)
(m) 159
Metallic Radius (pm)
159
Covalent radius (pm)
150
Atomic Radius (calculated) (pm)
208
Van der Waals Radius, (pm)
#N/A
Electro-negativity (Pauling)
1.3
Density (g/cm3)
13.31
Electron Affinity (kJ/mol)
0
Thermal Conductivity, W/(m K)
23
Electrical Resistivity (Ωm)
0.0000003
CAS NO
CAS7440-58-6
OXIDASI STATE
+4
PENEMU
Coster, Dirk & De Hevesy, George Charles
TAHUN
1923