Symbol
Lu
  
Os
  
Group Number
Not Available
  
Period Number
6
  
6
  
Block
f block
  
d block
  
Element Family
Lanthanide
  
Transition Metal
  
Space Group Name
P63/mmc
  
P63/mmc
  
Interesting Facts
- Metal dust of Lutetium element is highly explosive.
- Lutetium metal is corrosion resistance and acts stable in air.
  
- Osmium metal does not oxidize in air unless it is heated.
- But if it heated den it forms Osmium Tetroxide, which is highly toxic.
  
Sources
Found in Minerals, Mining, Ores of Minerals
  
Found As a By-product, Found in Minerals, Mining
  
History
  
  
Who Discovered
Georges Urbain and Carl Auer von Welsbach
  
Smithson Tennant
  
Discovery
In 1906
  
In 1803
  
Abundance
  
  
Abundance In Sun
~0.0000001 %
  
26
~0.0000002 %
  
25
Abundance In Earth's Crust
Abundance In Oceans
Not Available
  
Uses & Benefits
- Lutetium metal is used outside research. It has commercial uses like Industrial catalyst for cracking oil refineries of hydrocarbons .
  
- Its has very limited uses and its alloys are very hard and are used in the manufacturing of pen tips, pivots, needles and electrical contacts.
-
It is also used as industrial catalyst to speed up the chemical reaction.
  
Industrial Uses
NA
  
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry
  
Medical Uses
NA
  
NA
  
Other Uses
Alloys
  
Alloys
  
Biological Properties
  
  
Toxicity
Low Toxic
  
Highly Toxic
  
Present in Human Body
No
  
No
  
Melting Point
1,652.00 °C
  
19
Boiling Point
3,402.00 °C
  
19
Appearance
  
  
Physical State
Solid
  
Solid
  
Color
Silvery White
  
Silvery Bluish-Gray
  
Luster
Metallic
  
Metallic
  
Hardness
  
  
Mohs Hardness
Not Available
  
Brinell Hardness
3,490.00 MPa
  
1
Vickers Hardness
1,160.00 MPa
  
8
Not Available
  
Speed of Sound
Not Available
  
4,940.00 m/s
  
11
Optical Properties
  
  
Allotropes
No
  
No
  
α Allotropes
Not Available
  
Not Available
  
β Allotropes
Not Available
  
Not Available
  
γ Allotropes
Not Available
  
Not Available
  
Chemical Formula
Lu
  
Os
  
Isotopes
  
  
Electronegativity
  
  
Pauling Electronegativity
Allred Rochow Electronegativity
Allen Electronegativity
Not Available
  
Electropositivity
  
  
Pauling Electropositivity
Ionization Energies
  
  
1st Energy Level
523.50 kJ/mol
  
99+
840.00 kJ/mol
  
12
2nd Energy Level
1,340.00 kJ/mol
  
99+
1,309.80 kJ/mol
  
99+
3rd Energy Level
2,022.30 kJ/mol
  
99+
1,600.00 kJ/mol
  
99+
4th Energy Level
4,370.00 kJ/mol
  
28
Not Available
  
5th Energy Level
6,445.00 kJ/mol
  
21
Not Available
  
Electrochemical Equivalent
2.18 g/amp-hr
  
23
1.77 g/amp-hr
  
38
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
  
Chemical Stability, Ionization, Solubility
  
Electron Configuration
[Xe] 6s2 4f14 5d1
  
[Xe] 4f14 5d6 6s2
  
Crystal Structure
Hexagonal Close Packed (HCP)
  
Hexagonal Close Packed (HCP)
  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100
  
BCC-Crystal-Structure-.jpg#100
  
Atom
  
  
Radius of an Atom
  
  
Covalent Radius
Not Available
  
Atomic Volume
17.78 cm3/mol
  
30
8.49 cm3/mol
  
99+
Adjacent Atomic Numbers
  
  
Valence Electron Potential
50.90 (-eV)
  
26
91.40 (-eV)
  
12
Lattice Angles
π/2, π/2, 2 π/3
  
π/2, π/2, 2 π/3
  
Density
  
  
Density At Room Temperature
Density When Liquid (at m.p.)
Tensile Strength
Not Available
  
1,000.00 MPa
  
4
Viscosity
Not Available
  
Not Available
  
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available
  
Elasticity properties
  
  
Young's Modulus
Not Available
  
Other Mechanical Properties
NA
  
Ductile
  
Magnetic Characteristics
  
  
Magnetic Ordering
Paramagnetic
  
Paramagnetic
  
Electrical Properties
  
  
Electrical Property
Conductor
  
Conductor
  
Electrical Conductivity
0.02 106/cm Ω
  
99+
0.11 106/cm Ω
  
18
Electron Affinity
50.00 kJ/mol
  
21
106.10 kJ/mol
  
9
Specific Heat
0.15 J/(kg K)
  
36
0.13 J/(kg K)
  
39
Molar Heat Capacity
26.86 J/mol·K
  
24
24.70 J/mol·K
  
99+
Thermal Conductivity
16.40 W/m·K
  
99+
87.60 W/m·K
  
19
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
9.90 µm/(m·K)
  
40
5.10 µm/(m·K)
  
99+
Enthalpy
  
  
Enthalpy of Vaporization
355.90 kJ/mol
  
22
627.60 kJ/mol
  
7
Enthalpy of Fusion
18.70 kJ/mol
  
13
29.30 kJ/mol
  
4
Enthalpy of Atomization
398.00 kJ/mol
  
20
669.00 kJ/mol
  
6
Standard Molar Entropy
51.00 J/mol.K
  
30
32.60 J/mol.K
  
99+