Lanthanum vs Neodymium

PropertyLa LanthanumNd Neodymium
Atomic number5760
SymbolLaNd
NameLanthanumNeodymium
Categorylanthanidelanthanide
Standard Atomic Weight138.90547 u144.242 u
Period66
GroupN/AN/A
Blockss
Phase at STPsolidsolid
Electron configuration[Xe]6s25d1[Xe]6s24f4
Oxidation states[0, 1, 2, 3][0, 2, 3, 4]
Electronegativity (Pauling)1.11.14
Electron affinity0.47 eV1.913 eV
Density6150 kg/m³7010 kg/m³
Melting point917.85 °C1020.85 °C
Boiling point3463.85 °C3073.85 °C
Discovery year18391841