Neodymium vs Lawrencium

PropertyNd NeodymiumLr Lawrencium
Atomic number60103
SymbolNdLr
NameNeodymiumLawrencium
Categorylanthanideactinide
Standard Atomic Weight144.242 u262 u
Period67
GroupN/A3
Blockss
Phase at STPsolidsolid
Electron configuration[Xe]6s24f4[Rn]7s25f146d1
Oxidation states[0, 2, 3, 4][3]
Electronegativity (Pauling)1.14N/A
Electron affinity1.913 eV0.315 eV
Density7010 kg/m³1.560000e+4 kg/m³
Melting point1020.85 °C1626.85 °C
Boiling point3073.85 °C-273.15 °C
Discovery year18411961