Symbol Lu Atomic radius: pm 172 Fusion: kJ/Mole 22.0
Name Lutetium Ionic radius: pm (+3)98 Boiling point: C 3402
Atomic number 71 Electron affinity - Melting point: C 1663
Atomic weight 175.0 1st  ion potential 5.43 Specific Heat Cap: J/(g K) 0.15
Classification Trans metal Natural form Solid Thermal Cond: W/(cm K) 0.16
Configuration [Xe]4f145d16s2 Crystal structure Hex Electrical Cond 0.0185
Oxidation states 3 Density 9.84 Abundance: mg/kg-crust 0.8
Electronegativity 1.0 Vaporization: kJ/Mole 428.0    
Lutetium was first discovered in 1907-08 by Carl Auer bon Welsbach and Georges Urbain working independently. Uses - alloys, catalysts