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Yb Element
Ytterbium


Periodic Table
Symbol
Yb
Group Number
3 15
Period Number
6 2
Block
f block
Element Family
Lanthanide
CAS Number
7440644 26
Space Group Name
Fm_ 3m
Space Group Number
225.00 3
Facts
Interesting Facts
  • Ytterbium metal oxidizes rapidly if exposed to air.
  • Ytterbium metal can dissolve quickly in Mineral acid.
Sources
Found in Minerals, Mining, Ores of Minerals
History
Who Discovered
Jean Charles Galissard de Marignac
Discovery
In 1878
Abundance
Abundance In Universe
0.00 % 23
Abundance In Sun
0.00 % 26
Abundance In Meteorites
0.00 % 36
Abundance In Earth's Crust
0.00 % 33
Abundance In Oceans
0.00 % 37
Abundance In Humans
0.00 % 24
Uses
Uses & Benefits
  • Ytterbium metal is used in memory devices and tuneable laser.
  • It is also used as industrial catalyst as the other catalysts are too toxic and polluting.
Industrial Uses
Automobile Industry, Chemical Industry
Medical Uses
-
Other Uses
Alloys
Biological Properties
Toxicity
Highly Toxic
Present in Human Body
No
In Blood
0.00 Blood/mg dm-3 40
In Bone
2.10 p.p.m. 15
Physical
Melting Point
824.00 °C 54
Boiling Point
1,196.00 °C 65
Appearance
Physical State
Solid
Color
Silvery White
Luster
Metallic
Hardness
Mohs Hardness
1.00 22
Brinell Hardness
343.00 MPa 37
Vickers Hardness
206.00 MPa 54
Speed of Sound
1,590.00 m/s 66
Optical Properties
Refractive Index
1.60 33
Reflectivity
30.00 % 35
Allotropes
No
α Allotropes
-
β Allotropes
-
γ Allotropes
-
Chemical
Chemical Formula
Yb
Isotopes
Known Isotopes
30 9
Electronegativity
Pauling Electronegativity
1.10 45
Sanderson Electronegativity
1.10 38
Allred Rochow Electronegativity
1.06 34
Mulliken-Jaffe Electronegativity
1.10 44
Allen Electronegativity
1.10 55
Electropositivity
Pauling Electropositivity
2.20 39
Ionization Energies
1st Energy Level
603.40 kJ/mol 51
2nd Energy Level
1,174.80 kJ/mol 65
3rd Energy Level
2,417.00 kJ/mol 50
4th Energy Level
4,203.00 kJ/mol 41
5th Energy Level
6,150.00 kJ/mol 42
6th Energy Level
6,030.00 kJ/mol 57
7th Energy level
6,150.00 kJ/mol 49
8th Energy Level
6,034.00 kJ/mol 49
9th Energy Level
6,150.00 kJ/mol 45
10th Energy Level
6,150.00 kJ/mol 46
11th Energy Level
6,150.00 kJ/mol 51
12th Energy Level
6,030.00 kJ/mol 59
13th Energy Level
6,030.00 kJ/mol 42
14th Energy Level
6,030.00 kJ/mol 31
15th Energy Level
60,300.00 kJ/mol 43
16th Energy Level
60,300.00 kJ/mol 32
17th Energy Level
603.40 kJ/mol 53
18th Energy Level
6,110.00 kJ/mol 42
19th Energy Level
603.00 kJ/mol 50
20th Energy Level
615.00 kJ/mol 45
21st Energy Level
603.40 kJ/mol 61
22nd Energy Level
603.00 kJ/mol 41
23rd Energy Level
603.40 kJ/mol 60
24th Energy Level
603.40 kJ/mol 43
25th Energy Level
603.40 kJ/mol 45
26th Energy Level
603.40 kJ/mol 44
27th Energy Level
603.40 kJ/mol 47
28th Energy Level
603.40 kJ/mol 51
29th Energy Level
603.40 kJ/mol 52
30th Energy Level
603.40 kJ/mol 48
Electrochemical Equivalent
2.15 g/amp-hr 29
Electron Work Function
3.20 eV 45
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility
Atomic
Atomic Number
70 46
Electron Configuration
[Xe] 4f14 6s2
Crystal Structure
Face Centered Cubic (FCC)
Crystal Lattice
FCC-Crystal-Structure-of-Ytterbium.jpg#100
Atom
Number of Protons
70 45
Number of Neutrons
103 32
Number of Electrons
70 45
Radius of an Atom
Atomic Radius
176.00 pm 20
Covalent Radius
187.00 pm 20
Van der Waals Radius
242.00 pm 16
Atomic Weight
173.05 amu 41
Atomic Volume
24.79 cm3/mol 13
Adjacent Atomic Numbers
Previous Element
75
Next Element
80
Valence Electron Potential
50.30 (-eV) 28
Lattice Constant
548.47 pm 12
Lattice Angles
π/2, π/2, π/2
Lattice C/A Ratio
1.61 20
Mechanical
Density
Density At Room Temperature
6.90 g/cm3 67
Density When Liquid (at m.p.)
6.21 g/cm3 70
Tensile Strength
58.00 MPa 36
Viscosity
0.00 20
Vapor Pressure
Vapor Pressure at 1000 K
0.00 (Pa) 37
Vapor Pressure at 2000 K
0.00 (Pa) 37
Elasticity properties
Shear Modulus
9.90 GPa 54
Bulk Modulus
30.50 GPa 50
Young's Modulus
23.90 GPa 50
Poisson Ratio
0.21 34
Other Mechanical Properties
Ductile, Malleable
Magnetic
Magnetic Characteristics
Specific Gravity
6.97 64
Magnetic Ordering
Paramagnetic
Permeability
0.00 H/m 13
Susceptibility
0.00 24
Electrical Properties
Electrical Property
Conductor
Resistivity
0.25 nΩ·m 88
Electrical Conductivity
0.04 106/cm Ω 43
Electron Affinity
50.00 kJ/mol 26
Thermal
Specific Heat
0.15 J/(kg K) 37
Molar Heat Capacity
26.74 J/mol·K 32
Thermal Conductivity
38.50 W/m·K 35
Critical Temperature
26.30 K 78
Thermal Expansion
26.30 µm/(m·K) 14
Enthalpy
Enthalpy of Vaporization
128.90 kJ/mol 73
Enthalpy of Fusion
7.66 kJ/mol 49
Enthalpy of Atomization
180.00 kJ/mol 59
Standard Molar Entropy
59.90 J/mol.K 26
Summary >>
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