Sodium vs Neodymium

PropertyNa SodiumNd Neodymium
Atomic number1160
SymbolNaNd
NameSodiumNeodymium
Categoryalkali-metallanthanide
Standard Atomic Weight22.989769 u144.242 u
Period36
Group1N/A
Blockss
Phase at STPsolidsolid
Electron configuration[Ne]3s1[Xe]6s24f4
Oxidation states[-1, 0, 1][0, 2, 3, 4]
Electronegativity (Pauling)0.931.14
Electron affinity0.5479 eV1.913 eV
Density970 kg/m³7010 kg/m³
Melting point97.8 °C1020.85 °C
Boiling point882.85 °C3073.85 °C
Discovery year18071841