Lutetium Element Properties

Lutetium

f70
Yb
Ytterbium
d71
Lu
Lutetium
d72
Hf
Hafnium
General
Name(Lutetium)
Symbol(Lu)
Number(71)
Group Number(NA)
Group(Rare Earth, Lanthanides)
Block(d)
Density(9.85 g/cm3)
Atomic Weight(174.96 g/mol)
Atomic Volume(17.78 cm3/mol)
Discover(1907)


States
State(Solid)
Melting Point(1925 K)
Boiling Point(3675 K)
Triple Point(Nil)
Critical Point(Nil)
Heat of Fusion(22 kJ/mol)
Heat of Vaporization(414 kJ/mol)


Energies
First Ionization Energy(523.6 kJ/mole)
Second Ionization Energy(1340 kJ/mole)
Third Ionization Energy(2022 kJ/mole)
Electronegativity(1.27)
Electron Affinity(50 kJ/mole)
Specific Heat(0.15 J/gK)
Heat Atomization(Nil)


Oxidation and Electrons
Shells(2,8,18,32,9,2)
Electron Configuration([Xe] 4f14 5d1 6s2)
Minimum Oxidation Number(0)
Maximum Oxidation Number(3)
Minimum Common Oxidation Number(0)
Maximum Common Oxidation Number(3)


Appearance and Characteristics
Crystal Structure(hexagonal)
Characteristics(None)
Color(silvery-white)
Uses(alloys)
Hardness(Nil)
Toxicity(None)


Reactions
Reaction with Air(vigorous, =>Lu2O3)
Reaction with 6M HCl(mild, =>H2, LuCl3)
Reaction with 15M HNO3(mild, =>Lu(NO3)3)
Reaction with 6M NaOH(None)


Other Forms
Number of Isotopes(2)
Hydride(LuH2 LuH3)
Oxide(Lu2O3)
Chloride(LuCl3)


Radius
Atomic Radius(174 pm)
Ionic Radius (1+ ion)(Nil)
Ionic Radius (1- ion)(Nil)
Ionic Radius (2+ ion)(Nil)
Ionic Radius (2- ion)(Nil)
Ionic Radius (3+ ion)(100.1 pm)


Conductivity
Thermal Conductivity(16.4 J/m-sec-deg)
Electrical Conductivity(16.7 1/mohm-cm)
Polarizability(21.9 A3)


Abundance
Source(Monazite(phosphate),bastnaesite)
Relation Abundance Solar System(-1.435 log)
Abundance Earths Crust(-0.3 log)


f70
Yb
Ytterbium
d71
Lu
Lutetium
d72
Hf
Hafnium

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