Praseodymium Properties

     

Praseodymium By Von Welsbach, Baron Auer (1885)

NO ATOM
59
NAMA
Praseodymium
SIMBOL
Pr
BOBOT ATOM
140.90765
BENTUK
Solid
TIPE
Rare Earth Metal
GRUP
101
GRUP LAMA
Lanthanides
PERIOD
6
ELEKTRON CONFIG
[Xe] 4f3 6s2
GROUND LEVEL
4I°9/2
ENERGI IONISASI
5.473
TITIK LELEH
931
TITIK DIDIH
3290
STRUKTUR KRISTAL
§hex
Atomic Radius (display)
(m) 182
Metallic Radius (pm)
182
Covalent radius (pm)
#N/A
Atomic Radius (calculated) (pm)
247
Van der Waals Radius, (pm)
#N/A
Electro-negativity (Pauling)
1.13
Density (g/cm3)
6.64
Electron Affinity (kJ/mol)
50
Thermal Conductivity, W/(m K)
13
Electrical Resistivity (Ωm)
0.0000007
CAS NO
CAS7440-10-0
OXIDASI STATE
+3
PENEMU
Von Welsbach, Baron Auer
TAHUN
1885