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Ytterbium Properties
Ytterbium


Physical
0
Melting Point
824.00 °C 54
Boiling Point
1,196.00 °C 63
Hardness
0
Mohs Hardness
Not Available 0
Brinell Hardness
343.00 MPa 31
Vickers Hardness
206.00 MPa 33
Optical Properties
0
Refractive Index
Not Available 0
Reflectivity
Not Available 0
Speed of Sound
1,590.00 m/s 48
Allotropes
No 0
α Allotropes
Not Available 0
β Allotropes
Not Available 0
γ Allotropes
Not Available 0
Chemical
0
Chemical Formula
Yb 0
Isotopes
0
Known Isotopes
30 9
Electronegativity
0
Pauling Electronegativity
Not Available 0
Sanderson Electronegativity
Not Available 0
Allred Rochow Electronegativity
1.06 33
Mulliken-Jaffe Electronegativity
Not Available 0
Allen Electronegativity
Not Available 0
Electropositivity
0
Pauling Electropositivity
Not Available 0
Ionization Energies
0
1st Energy Level
603.40 kJ/mol 51
2nd Energy Level
1,174.80 kJ/mol 64
3rd Energy Level
2,417.00 kJ/mol 49
Electrochemical Equivalent
2.15 g/amp-hr 25
Electron Work Function
Not Available 0
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility 0
Mechanical
0
Density
0
Density At Room Temperature
6.90 g/cm3 62
Density When Liquid (at m.p.)
6.21 g/cm3 41
Vapor Pressure
0
Vapor Pressure at 1000 K
Not Available 0
Vapor Pressure at 2000 K
Not Available 0
Tensile Strength
58.00 MPa 18
Viscosity
Not Available 0
Elasticity properties
0
Shear Modulus
9.90 GPa 43
Bulk Modulus
30.50 GPa 39
Young's Modulus
23.90 GPa 45
Poisson Ratio
0.21 33
Other Mechanical Properties
Ductile, Malleable 0
Periodic Table
0
Symbol
Yb 0
Group Number
Not Available 0
Period Number
6 2
Block
f block 0
Element Family
Lanthanide 0
Atomic
0
Atomic Number
70 46
Atomic Weight
173.05 amu 41
Atomic Volume
24.79 cm3/mol 9
Electron Configuration
[Xe] 4f14 6s2 0
Valence Electron Potential
50.30 (-eV) 27
Atom
0
Number of Protons
70 45
Number of Neutrons
103 31
Number of Electrons
70 45
Crystal Structure
Face Centered Cubic (FCC) 0
Crystal Lattice
FCC-Crystal-Structure-of-Ytterbium.jpg#100 0
Radius of an Atom
0
Atomic Radius
176.00 pm 18
Covalent Radius
187.00 pm 20
Van der Waals Radius
242.00 pm 12
Lattice Constant
548.47 pm 11
Lattice Angles
π/2, π/2, π/2 0
Lattice C/A Ratio
Not Available 0
Adjacent Atomic Numbers
0
Next Element
80 0
Previous Element
75 0
Magnetic
0
Electrical Properties
0
Resistivity
0.25 nΩ·m 69
Electrical Conductivity
0.04 106/cm Ω 38
Electron Affinity
50.00 kJ/mol 21
Electrical Property
Conductor 0
Magnetic Characteristics
0
Specific Gravity
6.97 48
Magnetic Ordering
Paramagnetic 0
Permeability
Not Available 0
Susceptibility
Not Available 0
Thermal
0
Specific Heat
0.15 J/(kg K) 36
Thermal Conductivity
38.50 W/m·K 35
Critical Temperature
26.30 K 7
Molar Heat Capacity
26.74 J/mol·K 25
Thermal Expansion
26.30 µm/(m·K) 14
Standard Molar Entropy
59.90 J/mol.K 21
Enthalpy
0
Enthalpy of Vaporization
128.90 kJ/mol 51
Enthalpy of Fusion
7.66 kJ/mol 42
Enthalpy of Atomization
180.00 kJ/mol 47
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