71
Lu
Lutetium
174.96681
Basic Information
Bohr Model
Descriptive Numbers
Mass
Periodic Position
Classification
Abundance
Color
Atomic Radius
Temperature
Density
Heat
Electrical Resistance
Magnetic Properties
Elasticity
Hardness
Etymology
Discovery & Isolation
Production & Use
Radioactivity
Electron Affinity
Dipole Polarity
Lattice
Electron & Quantum
List of Compounds
Basic Information
Bohr Model
Static
Interactive
Descriptive Numbers
CAS Number
7439-94-3
CID Number
CID23929
DOT Number
3089
Mendeleev Number
41
Pettifor Number
21
Space Group Number
194
Glawe Number
19
Mass
Atomic Mass
174.96681 Da
Uncertainty
0.0001
Periodic Position
X Position
18
Y Position
8
Period
6
Group
3
Classification
Block
f
Category
Lanthanides
Geochemical
Rare Earth and Similars
Goldschmidt
Lithophilic
Electrical Type
Conductive
Abundance
Seawater
1.5e-13 kg/L
Sun
1.5e-7 mole ratio to silicon
Earth Crust
8e-7 g
Solar System
3.7e-8 mole ratio to silicon
Meteorites
0.0000029 %
Color
Jmol
#00AB24
Molcas Gv
#00AB24
CPK
#FF1493
Atomic Radius
Empirical
175
Calculated
217
Rahm
270
Uff
364
Mm3
265
Alvarez
274
Covalent (Single Bound)
160
Covalent (Triple Bound)
131
Covalent (Cordero)
187
Covalent (Pyykko)
162
Covalent (Pyykko Double)
131
Covalent (Pyykko Triple)
131
Metallic
173.8
Temperature
Melting/Freeze (USE)
1925 °K
Melting/Freeze (WEL)
1925 °K
Melting/Freeze (CRC)
1936 °K
Melting/Freeze (LNG)
1936 °K
Boiling/Density (USE)
3675 °K
Boiling/Density (WEL)
3675 °K
Boiling/Density (CRC)
3675 °K
Boiling/Density (LNG)
3675 °K
Boiling/Density (Zhang)
3603 °K
Superconducting Point
0.1 °K
Density
STP
9.841 kg/cm³
Solid (WEL)
9841 kg/cm³
Solid (CRC)
9840 kg/cm³
Solid (LNG)
9841 kg/cm³
Liquid (CR2)
9300 kg/cm³
Heat
Molar Volume
17.78 cm³/mol
Atomic Volume
17.8 cm³
Heat Of Fusion CRC
22 kJ/mol
Heat Of Fusion LNG
-22 kJ/mol
Evaporation USE
414 kJ/mol
Evaporation LNG
414 kJ/mol
Evaporation WEL
415 kJ/mol
Evaporation Zhang
414 kJ/mol
Molar Heat
26.86 J/molK
Heat Capacity USE
0.155 J/gK
Heat Capacity CRC
26.86 J/gK
Heat Capacity LNG
26.86 J/gK
Heat Capacity WEL
26.9 J/gK
Thermal Expansion
0.0000099 1/K
Adiabatic Index
N/A
Electrical Resistance
293k
582 nΩm
Magnetic Properties
Order
paramanyetic
Susceptibility
1.2e-9 m3/kg
Elasticity
Shear Modulus
27.2 GPa
Bulk Modulus
47.6 GPa
Poisson Ratio
0.261 ν
Youngs Modulus
68.6 GPa
Hardness
Brinell
893–1300
Vickers
755–1160
Etymology
Description
It is a silvery-white rare earth metal that is relatively stable in air. It is the most expensive rare earth metal and is found in almost all metals, but is difficult to isolate from other elements. It is the rarest of all natural elements. It is used as a catalyst in metal alloys and in various processes. It has two stable natural and seven radioisotopes. The most stable is Lu-174, with a half-life of 3.3 years. In 1907, Georges Urbain described and published the process of isolating lutetium from terbium. It was discovered at about the same time by Carl Auer von Welsbach. Its name comes from the Greek lutetia, meaning Paris.
Language Of Origin
Latin
Origin Of Word
Latin name of Paris from Lutetia
Meaning
Paris
Symbol Origin
place name
Etymological Description
From the Latin word Lutetia (called "muddy place" in Gallic) for the city of Paris.
Discovery & Isolation
Observed/Predicted By
C. A. von Welsbach and G. Urbain
Observed/Discovery Year
1906
Discovery Location
Isolated Sample By
C. A. von Welsbach
Isolated Sample Year
1906
Production & Use
Sources
It is found together with ytterburium in gadolinite and xenotime. It is obtained from monazite sand, which is usually 50% rare earth element and 0.003% lutetium by weight.
Uses
There is no usage area.
Radioactivity
Half Life
Stable
Lifetime
Stable
Neutron Mass Absorption
0.022
Neutron Cross Section
84
Electron Affinity
Proton Affinity
992
Electron Affinity (eV)
0.34
Electron Affinity (kJ/mol)
33.4
Electron Affinity (pauling)
1.27
Electron Affinity (allen)
6.455
Electron Affinity (ghosh)
0.22565
Dipole Polarity
Accepted
137
Uncertainty
7
C6 GB
2020
Lattice
Constant Internal Default Radius
3.51
Strucutre
HEX
Angles
π/2, π/2, 2 π/3
Electron & Quantum
Oxidation States
0,2,3
Electron Configuration
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d1
Quantum Number
I put/a
Electron Configuration Semantic
[Car] 4f14 5d1 6s2
Shells-0
2
Shells-1
8
Shells-2
18
Shells-3
32
Shells-4
9
Shells-5
2
Ionization Energies-0
523.5
Ionization Energies-1
1340
Ionization Energies-2
2022.3
Ionization Energies-3
4370
Ionization Energies-4
6445
List of Compounds
1-10 of 25 compounds
| Formula | Names |
|---|---|
| Lu | lutetium lutetium metal |
| LuBr3 | lutetium(III)bromide tribromolutetium |
| LuCl3 | lutetium chloride lutetium(III) chloride lutetium trichloride trichlorolutetium |
| F3Lu | lutetium fluoride lutetium trifluoride trifluorolutetium |
| I3Lu | lutetium(III)iodide triiodolutetium |
| LuB4 | lutetium boride |
| LuN | lutetium nitride |
| LuSb | lutetium antimonide antimony, compound with lutetium (1:1) |
| Lu2O3 | lutetium(III) oxide cassiopeium oxide dilutetium trioxide lutetium oxide |
| Lu2S3 | lutetium sulfide |
