Neodymium vs Rutherfordium

PropertyNd NeodymiumRf Rutherfordium
Atomic number60104
SymbolNdRf
NameNeodymiumRutherfordium
Categorylanthanidetransition-metal
Standard Atomic Weight144.242 u263 u
Period67
GroupN/A4
Blockss
Phase at STPsolidsolid
Electron configuration[Xe]6s24f4[Rn]7s25f146d2
Oxidation states[0, 2, 3, 4][3, 4]
Electronegativity (Pauling)1.14N/A
Electron affinity1.913 eV0.65 eV
Density7010 kg/m³2.330000e+4 kg/m³
Melting point1020.85 °C2126.85 °C
Boiling point3073.85 °C5526.85 °C
Discovery year18411964