Properties of Lutetium and Manganese
Melting Point
1,652.00 °C
  
19
1,245.00 °C
  
37
Boiling Point
3,402.00 °C
  
19
1,962.00 °C
  
99+
Hardness
  
  
Mohs Hardness
Not Available
  
Brinell Hardness
196.00 MPa
  
99+
Vickers Hardness
1,160.00 MPa
  
8
Not Available
  
Optical Properties
  
  
Refractive Index
Not Available
  
Not Available
  
Reflectivity
Not Available
  
Not Available
  
Speed of Sound
Not Available
  
5,150.00 m/s
  
7
Allotropes
No
  
No
  
α Allotropes
Not Available
  
Not Available
  
β Allotropes
Not Available
  
Not Available
  
γ Allotropes
Not Available
  
Not Available
  
Chemical Formula
Lu
  
Mn
  
Isotopes
  
  
Electronegativity
  
  
Pauling Electronegativity
Sanderson Electronegativity
Not Available
  
Allred Rochow Electronegativity
Mulliken-Jaffe Electronegativity
Not Available
  
Not Available
  
Allen Electronegativity
Not Available
  
Electropositivity
  
  
Pauling Electropositivity
Ionization Energies
  
  
1st Energy Level
523.50 kJ/mol
  
99+
717.30 kJ/mol
  
30
2nd Energy Level
1,340.00 kJ/mol
  
99+
1,509.00 kJ/mol
  
39
3rd Energy Level
2,022.30 kJ/mol
  
99+
3,248.00 kJ/mol
  
21
Electrochemical Equivalent
2.18 g/amp-hr
  
23
0.29 g/amp-hr
  
99+
Other Chemical Properties
Density
  
  
Density At Room Temperature
7.21 g/cm3
  
99+
Density When Liquid (at m.p.)
5.95 g/cm3
  
99+
Vapor Pressure
  
  
Vapor Pressure at 2000 K
Not Available
  
Tensile Strength
Not Available
  
Not Available
  
Viscosity
Not Available
  
Not Available
  
Elasticity properties
  
  
Shear Modulus
Not Available
  
Poisson Ratio
Not Available
  
Other Mechanical Properties
NA
  
NA
  
Symbol
Lu
  
Mn
  
Group Number
Not Available
  
Period Number
6
  
4
  
Atomic Volume
17.78 cm3/mol
  
30
1.39 cm3/mol
  
99+
Electron Configuration
[Xe] 6s2 4f14 5d1
  
[Ar] 3d5 4s2
  
Valence Electron Potential
50.90 (-eV)
  
26
220.00 (-eV)
  
2
Atom
  
  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100
  
BCC-Crystal-Structure-.jpg#100
  
Radius of an Atom
  
  
Lattice Angles
π/2, π/2, 2 π/3
  
π/2, π/2, π/2
  
Lattice C/A Ratio
Not Available
  
Adjacent Atomic Numbers
  
  
Electrical Properties
  
  
Electrical Conductivity
0.02 106/cm Ω
  
99+
0.01 106/cm Ω
  
99+
Electron Affinity
50.00 kJ/mol
  
21
0.00 kJ/mol
  
40
Magnetic Characteristics
  
  
Permeability
Not Available
  
Not Available
  
Susceptibility
Not Available
  
Not Available
  
Specific Heat
0.15 J/(kg K)
  
36
0.48 J/(kg K)
  
11
Thermal Conductivity
16.40 W/m·K
  
99+
7.81 W/m·K
  
99+
Critical Temperature
Not Available
  
Not Available
  
Molar Heat Capacity
26.86 J/mol·K
  
24
26.32 J/mol·K
  
29
Thermal Expansion
9.90 µm/(m·K)
  
40
21.70 µm/(m·K)
  
21
Standard Molar Entropy
51.00 J/mol.K
  
30
32.00 J/mol.K
  
99+
Enthalpy
  
  
Enthalpy of Vaporization
355.90 kJ/mol
  
22
219.70 kJ/mol
  
99+
Enthalpy of Fusion
18.70 kJ/mol
  
13
14.64 kJ/mol
  
23
Enthalpy of Atomization
398.00 kJ/mol
  
20
280.30 kJ/mol
  
38