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What is Lutetium?
Lutetium


Periodic Table
Symbol
Lu
Group Number
3 15
Period Number
6 2
Block
f block
Element Family
Lanthanide
CAS Number
7439943 84
Space Group Name
P63/mmc
Space Group Number
194.00 7
Facts
Interesting Facts
  • Metal dust of Lutetium element is highly explosive.
  • Lutetium metal is corrosion resistance and acts stable in air.
Sources
Found in Minerals, Mining, Ores of Minerals
History
Who Discovered
Georges Urbain and Carl Auer von Welsbach
Discovery
In 1906
Abundance
Abundance In Universe
0.00 % 31
Abundance In Sun
0.00 % 26
Abundance In Meteorites
0.00 % 48
Abundance In Earth's Crust
0.00 % 41
Abundance In Oceans
0.00 % 44
Abundance In Humans
0.00 % 24
Uses
Uses & Benefits
  • Lutetium metal is used outside research. It has commercial uses like Industrial catalyst for cracking oil refineries of hydrocarbons .
Industrial Uses
-
Medical Uses
-
Other Uses
Alloys
Biological Properties
Toxicity
Low Toxic
Present in Human Body
No
In Blood
0.00 Blood/mg dm-3 37
In Bone
0.00 p.p.m. 41
Physical
Melting Point
1,652.00 °C 19
Boiling Point
3,402.00 °C 20
Appearance
Physical State
Solid
Color
Silvery White
Luster
Metallic
Hardness
Mohs Hardness
4.50 10
Brinell Hardness
893.00 MPa 11
Vickers Hardness
1,160.00 MPa 14
Speed of Sound
5,200.00 m/s 10
Optical Properties
Refractive Index
1.90 18
Reflectivity
60.00 % 23
Allotropes
No
α Allotropes
-
β Allotropes
-
γ Allotropes
-
Chemical
Chemical Formula
Lu
Isotopes
Known Isotopes
35 4
Electronegativity
Pauling Electronegativity
1.27 35
Sanderson Electronegativity
1.27 27
Allred Rochow Electronegativity
1.14 29
Mulliken-Jaffe Electronegativity
1.27 34
Allen Electronegativity
1.27 43
Electropositivity
Pauling Electropositivity
2.73 20
Ionization Energies
1st Energy Level
523.50 kJ/mol 79
2nd Energy Level
1,340.00 kJ/mol 52
3rd Energy Level
2,022.30 kJ/mol 77
4th Energy Level
4,370.00 kJ/mol 38
5th Energy Level
6,445.00 kJ/mol 34
6th Energy Level
5,230.00 kJ/mol 83
7th Energy level
5,230.00 kJ/mol 75
8th Energy Level
5,230.00 kJ/mol 74
9th Energy Level
5,230.00 kJ/mol 73
10th Energy Level
5,230.00 kJ/mol 71
11th Energy Level
5,235.00 kJ/mol 76
12th Energy Level
5,230.00 kJ/mol 79
13th Energy Level
5,230.00 kJ/mol 69
14th Energy Level
5,230.00 kJ/mol 54
15th Energy Level
52,300.00 kJ/mol 69
16th Energy Level
52,300.00 kJ/mol 55
17th Energy Level
523.50 kJ/mol 84
18th Energy Level
5,230.00 kJ/mol 70
19th Energy Level
523.50 kJ/mol 83
20th Energy Level
523.00 kJ/mol 73
21st Energy Level
523.50 kJ/mol 83
22nd Energy Level
523.00 kJ/mol 67
23rd Energy Level
5,230.00 kJ/mol 28
24th Energy Level
523.50 kJ/mol 79
25th Energy Level
523.00 kJ/mol 71
26th Energy Level
523.50 kJ/mol 79
27th Energy Level
523.50 kJ/mol 74
28th Energy Level
523.50 kJ/mol 77
29th Energy Level
523.50 kJ/mol 80
30th Energy Level
523.00 kJ/mol 74
Electrochemical Equivalent
2.18 g/amp-hr 27
Electron Work Function
3.30 eV 44
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
Atomic
Atomic Number
71 45
Electron Configuration
[Xe] 6s2 4f14 5d1
Crystal Structure
Hexagonal Close Packed (HCP)
Crystal Lattice
BCC-Crystal-Structure-.jpg#100
Atom
Number of Protons
71 44
Number of Neutrons
104 31
Number of Electrons
71 44
Radius of an Atom
Atomic Radius
174.00 pm 22
Covalent Radius
187.00 pm 20
Van der Waals Radius
221.00 pm 27
Atomic Weight
174.97 amu 40
Atomic Volume
17.78 cm3/mol 44
Adjacent Atomic Numbers
Previous Element
76
Next Element
63
Valence Electron Potential
50.90 (-eV) 27
Lattice Constant
350.31 pm 47
Lattice Angles
π/2, π/2, 2 π/3
Lattice C/A Ratio
1.59 32
Mechanical
Density
Density At Room Temperature
9.84 g/cm3 42
Density When Liquid (at m.p.)
9.30 g/cm3 47
Tensile Strength
230.00 MPa 18
Viscosity
0.00 25
Vapor Pressure
Vapor Pressure at 1000 K
0.00 (Pa) 35
Vapor Pressure at 2000 K
3.18 (Pa) 11
Elasticity properties
Shear Modulus
27.20 GPa 33
Bulk Modulus
47.60 GPa 25
Young's Modulus
68.60 GPa 32
Poisson Ratio
0.26 21
Other Mechanical Properties
-
Magnetic
Magnetic Characteristics
Specific Gravity
9.84 43
Magnetic Ordering
Paramagnetic
Permeability
0.00 H/m 9
Susceptibility
0.00 14
Electrical Properties
Electrical Property
Conductor
Resistivity
582.00 nΩ·m 9
Electrical Conductivity
0.02 106/cm Ω 50
Electron Affinity
50.00 kJ/mol 26
Thermal
Specific Heat
0.15 J/(kg K) 37
Molar Heat Capacity
26.86 J/mol·K 31
Thermal Conductivity
16.40 W/m·K 52
Critical Temperature
1,925.00 K 23
Thermal Expansion
9.90 µm/(m·K) 53
Enthalpy
Enthalpy of Vaporization
355.90 kJ/mol 32
Enthalpy of Fusion
18.70 kJ/mol 13
Enthalpy of Atomization
398.00 kJ/mol 26
Standard Molar Entropy
51.00 J/mol.K 41
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