Scandium vs Lutetium

PropertySc ScandiumLu Lutetium
Atomic number2171
SymbolScLu
NameScandiumLutetium
Categorytransition-metallanthanide
Standard Atomic Weight44.955908 u174.9668 u
Period46
Group33
Blockss
Phase at STPsolidsolid
Electron configuration[Ar]4s23d1[Xe]6s24f145d1
Oxidation states[0, 1, 2, 3][0, 1, 2, 3]
Electronegativity (Pauling)1.361.27
Electron affinity0.188 eV0.346 eV
Density2990 kg/m³9840 kg/m³
Melting point1540.85 °C1662.85 °C
Boiling point2835.85 °C3401.85 °C
Discovery year18791907