Sodium vs Lanthanum

PropertyNa SodiumLa Lanthanum
Atomic number1157
SymbolNaLa
NameSodiumLanthanum
Categoryalkali-metallanthanide
Standard Atomic Weight22.989769 u138.90547 u
Period36
Group1N/A
Blockss
Phase at STPsolidsolid
Electron configuration[Ne]3s1[Xe]6s25d1
Oxidation states[-1, 0, 1][0, 1, 2, 3]
Electronegativity (Pauling)0.931.1
Electron affinity0.5479 eV0.47 eV
Density970 kg/m³6150 kg/m³
Melting point97.8 °C917.85 °C
Boiling point882.85 °C3463.85 °C
Discovery year18071839