• Class: Heavy Lanthinides
• Period: 6
• IUPAC group: 3
• Traditional: IIIa

• Discovered in: 1907 by Urbain and von Welsbach
• Origin of name: Lutetia, ancient name for Paris
• Historical or alternate name:

Monazite & yttria

• Atmosphere: ~0.0 ppm
• Primitive mantle: 0.057 ppm
• Sea water: ~0.0 ppm
• Metallic meteorite: 0.0243 ppm
• ConTinental crust: 0.30 ppm
• Solar photosphere: 0.76 log of abundance
• Oceanic crust: 0.56 ppm
• Solar system: 0.0369 relative to Si=1.0e6

   Hazards

Compounds have moderate toxicity..

• Lower:
• Upper:

Lutetium Physical Properties

 Transitional Data

• State: Solid
• Density: 9.8404 g/cm3

 Molar enthalpy

• Atomization: 427.37 kJ mol-1
• Fusion: 19.2 kJ mol-1
• Vaporization: 428 kJ mol-1

 Transition points

• MelTing point: 1936.0 K
• Boiling point: 3668.0 K
• Critical temperature: 3540.0 K

 Molar properties

• Atomic weight: 174.967 g/mole
• Molar volume: 17.891 cm3 mol-1

 Crystal structure sequence

hexagonal-close-packed <1673 K < body-centered-cubic < melTing point

 Thermodynamics

• State: solid
  • Enthalpy 0
  • Gibbs function 0
  • Entropy 50.96
  • Heat Capacity 26.86

• State: gas
  • Enthalpy 427.6
  • Gibbs function 387.8
  • Entropy 184.800
  • Heat Capacity 20.861

 Miscellaneous physical

• Electrical resistivity: 79.0 µ-ohms/cm
• Debye temperature: 210.0 K
• Thermal conductivity: 16.4 W / m / K
• Coefficient of linear expansion: 8.3Coef. per K
• Mass magnetic susceptibility: 1.3e-9
• X-ray diffraction mass absorption coefficients:
• CuK: 153 (µ/p)/cm2 g-1
• MoK: 88.2 (µ/p)/cm2 g-1

Lutetium Chemical Properties

 Chemical basics:

• Oxidation states: +3
• Molecular wt: 174.967 g/mole

 Radii

• Covalent: 156 pm
• Atomic: 173.8 pm
• Van der Waals: pm

 Ions:

• ion: +3 pm 86.1

 Covalent bonds

 Effective nuclear charge

• Slater: 3.00
• Clementi: 8.80
• Froese-Fischer: 12.68

 Electronegativity

• Pauling: 1.2
• Allred-Rochow: 1.14

 Standard reactions

Lutetium Nuclear Properties

• Known 22
• Listed 7

• Known 167 - 180
• Listed 171 - 177

• % Occ.:Natural
• Mossbauer NRA:
• Nuclear spin/Quantum no.:
• Radioisotopes:
  • Half-life: 8.22 days
  • Decay mode: E.C., Beta+
  • Source:
• Notes

• % Occ.:Natural
• Mossbauer NRA:
• Nuclear spin/Quantum no.:
• Radioisotopes:
  • Half-life: 6.70 days
  • Decay mode: E.C.,
  • Source:
• Notes

• % Occ.:Natural
• Mossbauer NRA:
• Nuclear spin/Quantum no.: 7/2
• Radioisotopes:
  • Half-life: 1.37 years
  • Decay mode: E.C.,
  • Source:
• Notes

• % Occ.:Natural
• Mossbauer NRA:
• Nuclear spin/Quantum no.: 1/0
• Radioisotopes:
  • Half-life: 3.31 years
  • Decay mode: E.C., Beta+
  • Source:
• Notes

• % Occ.:Natural 97.41%
• Mossbauer NRA: 18.2
• Nuclear spin/Quantum no.: 7/2
• Radioisotopes:
  • Half-life:
  • Decay mode:
  • Source:
• Notes

• % Occ.:Natural 2.59%
• Mossbauer NRA:
• Nuclear spin/Quantum no.: 7/0
• Radioisotopes:
  • Half-life: 35.70 E9 years
  • Decay mode: Beta-
  • Source:
• Notes date

• % Occ.:Natural
• Mossbauer NRA:
• Nuclear spin/Quantum no.:
• Radioisotopes:
  • Half-life: 6.71 days
  • Decay mode: Beta-
  • Source:
• Notes

• Isotope Cross-section 75±2 barns

• Absolute sensitivity: 3.03e-2 1H=1.0
• Relative sensitivity: 3.12e-2 1H=1.0
• Receptivity: 156 13C=1.0
• Magnetogyric ratio: 3.05e7 rad / T / s
• Quadropole moment: 5.68e-28 m2
• Frequency: 11.407 MHz
• Reference:

Lutetium Energy Properties

Electrons

• Ground state electron configuration: [Xe] 4f14 5d1 6s2
• Electron affinity: <=50 kJ mol-1
• Filling orbitals:

Spectral lines

 Ionization energies

 Atomic energy levels