Germanium vs Lanthanum

PropertyGe GermaniumLa Lanthanum
Atomic number3257
SymbolGeLa
NameGermaniumLanthanum
Categorymetalloidlanthanide
Standard Atomic Weight72.63 u138.90547 u
Period46
Group14N/A
Blockps
Phase at STPsolidsolid
Electron configuration[Ar]4s23d104p2[Xe]6s25d1
Oxidation states[-4, -3, -2, -1, 0, 1, 2, 3, 4][0, 1, 2, 3]
Electronegativity (Pauling)2.011.1
Electron affinity1.232 eV0.47 eV
Density5323.4 kg/m³6150 kg/m³
Melting point938.25 °C917.85 °C
Boiling point2832.85 °C3463.85 °C
Discovery year18861839