Rhenium Ytterbium Comparison
Periodic Table
Symbol
Re
Yb
Group Number
7
11
Not Available
Period Number
6
6
Block
d block
f block
Element Family
Transition Metal
Lanthanide
CAS Number
7440155
99+
7440644
26
Space Group Name
P63/mmc
Fm_ 3m
Space Group Number
194.00
5
225.00
2
Facts
Interesting Facts
- Chemical properties of Rhenium are similar to Manganese.
- Rhenium metal is created while refining Molybdenum.
- Ytterbium metal oxidizes rapidly if exposed to air.
- Ytterbium metal can dissolve quickly in Mineral acid.
Sources
Found in Minerals, Mining, Ores of Minerals
Found in Minerals, Mining, Ores of Minerals
History
Who Discovered
Masataka Ogawa
Jean Charles Galissard de Marignac
Discovery
In 1908
In 1878
Abundance
Abundance In Universe
2 * 10-8 %
29
2 * 10-7 %
22
Abundance In Sun
~0.00000001 %
29
~0.0000001 %
26
Abundance In Meteorites
0.00 %
99+
0.00 %
36
Abundance In Earth's Crust
0.00 %
99+
0.00 %
33
Abundance In Oceans
0.00 %
34
0.00 %
37
Uses
Uses & Benefits
- Alloys of Rhenium are used as an electric contact material. It can resist withstand arc corrosion.
- Its catalysts are used in hydrogenation of fine chemicals. Its Alloy with nickel is used to produce turbine blades.
- 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
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
Automobile Industry, Chemical Industry
Medical Uses
NA
NA
Other Uses
Alloys
Alloys
Biological Properties
Toxicity
Low Toxic
Highly Toxic
Present in Human Body
No
No
Physical Properties
Melting Point
3,180.00 °C
2
824.00 °C
99+
Boiling Point
5,627.00 °C
2
1,196.00 °C
99+
Appearance
Physical State
Solid
Solid
Color
Silvery Gray
Silvery White
Luster
Metallic
Metallic
Hardness
Mohs Hardness
7.00
3
Not Available
Brinell Hardness
1,320.00 MPa
8
343.00 MPa
31
Vickers Hardness
1,350.00 MPa
7
206.00 MPa
33
Speed of Sound
4,700.00 m/s
15
1,590.00 m/s
99+
Optical Properties
Allotropes
No
No
α Allotropes
Not Available
Not Available
β Allotropes
Not Available
Not Available
γ Allotropes
Not Available
Not Available
Chemical Properties
Chemical Formula
Re
Yb
Isotopes
Known Isotopes
33
6
30
9
Electronegativity
Pauling Electronegativity
1.90
11
Not Available
Allred Rochow Electronegativity
1.46
15
1.06
33
Allen Electronegativity
1.60
21
Not Available
Electropositivity
Pauling Electropositivity
2.10
99+
Not Available
Ionization Energies
1st Energy Level
760.00 kJ/mol
20
603.40 kJ/mol
99+
2nd Energy Level
1,260.00 kJ/mol
99+
1,174.80 kJ/mol
99+
3rd Energy Level
2,510.00 kJ/mol
99+
2,417.00 kJ/mol
99+
4th Energy Level
3,640.00 kJ/mol
99+
4,203.00 kJ/mol
31
Electrochemical Equivalent
0.99 g/amp-hr
99+
2.15 g/amp-hr
25
Electron Work Function
4.96 eV
7
Not Available
Other Chemical Properties
Corrosion, Ionization, Radioactive Isotopes, Solubility
Ionization, Radioactive Isotopes, Solubility
Atomic Properties
Atomic Number
75
99+
70
99+
Electron Configuration
[Xe] 4f14 5d5 6s2
[Xe] 4f14 6s2
Crystal Structure
Hexagonal Close Packed (HCP)
Face Centered Cubic (FCC)
Crystal Lattice
BCC-Crystal-Structure-.jpg#100
FCC-Crystal-Structure-of-Ytterbium.jpg#100
Atom
Number of Protons
75
40
70
99+
Number of Neutrons
111
26
103
31
Number of Electrons
75
40
70
99+
Radius of an Atom
Atomic Radius
137.00 pm
40
176.00 pm
18
Covalent Radius
151.00 pm
34
187.00 pm
20
Van der Waals Radius
200.00 pm
28
242.00 pm
12
Atomic Weight
186.21 amu
36
173.05 amu
99+
Atomic Volume
8.85 cm3/mol
99+
24.79 cm3/mol
9
Adjacent Atomic Numbers
Valence Electron Potential
180.00 (-eV)
3
50.30 (-eV)
27
Lattice Constant
276.10 pm
99+
548.47 pm
11
Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
Lattice C/A Ratio
1.62
3
Not Available
Mechanical Properties
Density
Density At Room Temperature
21.02 g/cm3
12
6.90 g/cm3
99+
Density When Liquid (at m.p.)
18.90 g/cm3
4
6.21 g/cm3
99+
Tensile Strength
1,070.00 MPa
3
58.00 MPa
18
Viscosity
Not Available
Not Available
Vapor Pressure
Vapor Pressure at 2000 K
0.00 (Pa)
29
Not Available
Elasticity properties
Shear Modulus
178.00 GPa
3
9.90 GPa
99+
Bulk Modulus
370.00 GPa
2
30.50 GPa
39
Young's Modulus
463.00 GPa
2
23.90 GPa
99+
Poisson Ratio
0.30
14
0.21
33
Other Mechanical Properties
Ductile, Malleable
Ductile, Malleable
Magnetic Properties
Magnetic Characteristics
Specific Gravity
21.02
5
6.97
99+
Magnetic Ordering
Paramagnetic
Paramagnetic
Electrical Properties
Electrical Property
Conductor
Conductor
Resistivity
193.00 nΩ·m
20
0.25 nΩ·m
99+
Electrical Conductivity
0.05 106/cm Ω
33
0.04 106/cm Ω
38
Electron Affinity
14.50 kJ/mol
35
50.00 kJ/mol
21
Thermal Properties
Specific Heat
0.13 J/(kg K)
39
0.15 J/(kg K)
36
Molar Heat Capacity
25.48 J/mol·K
38
26.74 J/mol·K
25
Thermal Conductivity
48.00 W/m·K
31
38.50 W/m·K
35
Critical Temperature
Not Available
26.30 K
7
Thermal Expansion
6.20 µm/(m·K)
99+
26.30 µm/(m·K)
14
Enthalpy
Enthalpy of Vaporization
707.10 kJ/mol
3
128.90 kJ/mol
99+
Enthalpy of Fusion
33.05 kJ/mol
2
7.66 kJ/mol
99+
Enthalpy of Atomization
791.00 kJ/mol
2
180.00 kJ/mol
99+
Standard Molar Entropy
36.90 J/mol.K
99+
59.90 J/mol.K
21
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