Neodymium vs Gadolinium

PropertyNd NeodymiumGd Gadolinium
Atomic number6064
SymbolNdGd
NameNeodymiumGadolinium
Categorylanthanidelanthanide
Standard Atomic Weight144.242 u157.25 u
Period66
GroupN/AN/A
Blockss
Phase at STPsolidsolid
Electron configuration[Xe]6s24f4[Xe]6s24f75d1
Oxidation states[0, 2, 3, 4][0, 1, 2, 3]
Electronegativity (Pauling)1.141.2
Electron affinity1.913 eV0.132 eV
Density7010 kg/m³7900 kg/m³
Melting point1020.85 °C1312.85 °C
Boiling point3073.85 °C3272.85 °C
Discovery year18411886