Rhodium vs Neodymium

PropertyRh RhodiumNd Neodymium
Atomic number4560
SymbolRhNd
NameRhodiumNeodymium
Categorytransition-metallanthanide
Standard Atomic Weight102.9055 u144.242 u
Period56
Group9N/A
Blockss
Phase at STPsolidsolid
Electron configuration[Kr]5s14d8[Xe]6s24f4
Oxidation states[-3, -1, 1, 2, 3, 4, 5, 6, 7][0, 2, 3, 4]
Electronegativity (Pauling)2.281.14
Electron affinity1.137 eV1.913 eV
Density1.240000e+4 kg/m³7010 kg/m³
Melting point1963.85 °C1020.85 °C
Boiling point3694.85 °C3073.85 °C
Discovery year18031841