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Dysprosium vs Rhenium

Dysprosium
Rhenium
Rhenium vs Dysprosium


Periodic Table
Symbol
Dy   
Re   
Group Number
Not Available   
7   
11
Period Number
6   
6   
Block
f block   
d block   
Element Family
Lanthanide   
Transition Metal   
CAS Number
7429916   
99+
7440155   
99+
Space Group Name
P63/mmc   
P63/mmc   
Space Group Number
194.00   
5
194.00   
5
Facts
Interesting Facts
  • Dysprosium acts stable in air at room temperature.
  • Dysprosium behaves very much like paramagnetic metal.
  
  • Chemical properties of Rhenium are similar to Manganese.
  • Rhenium metal is created while refining Molybdenum.
  
Sources
Found in Minerals, Mining, Ores of Minerals   
Found in Minerals, Mining, Ores of Minerals   
History
  
  
Who Discovered
Lecoq de Boisbaudran   
Masataka Ogawa   
Discovery
In 1886   
In 1908   
Abundance
  
  
Abundance In Universe
2 * 10-7 %   
22
2 * 10-8 %   
29
Abundance In Sun
~0.0000002 %   
25
~0.00000001 %   
29
Abundance In Meteorites
0.00 %   
33
0.00 %   
99+
Abundance In Earth's Crust
0.00 %   
28
0.00 %   
99+
Abundance In Oceans
0.00 %   
35
0.00 %   
34
Uses
Uses & Benefits
  • Dysprosium metal is highly reactive due to which it pure form is not as usual as its alloy.
  • Thi metals alloy is used in magnate as it is resistance to high temperature.
  
  • 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.
  
Industrial Uses
NA   
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry   
Medical Uses
NA   
NA   
Other Uses
Alloys, Nuclear Research   
Alloys   
Biological Properties
  
  
Toxicity
Mildly Toxic   
Low Toxic   
Present in Human Body
No   
No   
Physical Properties
Melting Point
1,407.00 °C   
32
3,180.00 °C   
2
Boiling Point
2,562.00 °C   
99+
5,627.00 °C   
2
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silvery White   
Silvery Gray   
Luster
Metallic   
Metallic   
Hardness
  
  
Mohs Hardness
Not Available   
7.00   
3
Brinell Hardness
500.00 MPa   
23
1,320.00 MPa   
8
Vickers Hardness
540.00 MPa   
20
1,350.00 MPa   
7
Speed of Sound
2,710.00 m/s   
33
4,700.00 m/s   
15
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
Dy   
Re   
Isotopes
  
  
Known Isotopes
29   
10
33   
6
Electronegativity
  
  
Pauling Electronegativity
1.22   
38
1.90   
11
Allred Rochow Electronegativity
1.10   
30
1.46   
15
Allen Electronegativity
Not Available   
1.60   
21
Electropositivity
  
  
Pauling Electropositivity
2.78   
16
2.10   
99+
Ionization Energies
  
  
1st Energy Level
573.00 kJ/mol   
99+
760.00 kJ/mol   
20
2nd Energy Level
1,130.00 kJ/mol   
99+
1,260.00 kJ/mol   
99+
3rd Energy Level
2,200.00 kJ/mol   
99+
2,510.00 kJ/mol   
99+
4th Energy Level
3,990.00 kJ/mol   
37
3,640.00 kJ/mol   
99+
Electrochemical Equivalent
2.02 g/amp-hr   
29
0.99 g/amp-hr   
99+
Electron Work Function
Not Available   
4.96 eV   
7
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility   
Corrosion, Ionization, Radioactive Isotopes, Solubility   
Atomic Properties
Atomic Number
66   
99+
75   
99+
Electron Configuration
[Xe] 4f9 6s2   
[Xe] 4f14 5d5 6s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
HCP-Crystal-Structure-of-Dysprosium.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
66   
99+
75   
40
Number of Neutrons
96   
35
111   
26
Number of Electrons
66   
99+
75   
40
Radius of an Atom
  
  
Atomic Radius
178.00 pm   
16
137.00 pm   
40
Covalent Radius
192.00 pm   
17
151.00 pm   
34
Van der Waals Radius
229.00 pm   
20
200.00 pm   
28
Atomic Weight
162.50 amu   
99+
186.21 amu   
36
Atomic Volume
19.00 cm3/mol   
23
8.85 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Terbium
  
Tungsten
  
Next Element
Holmium
  
Osmium
  
Valence Electron Potential
47.40 (-eV)   
32
180.00 (-eV)   
3
Lattice Constant
359.30 pm   
37
276.10 pm   
99+
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
1.57   
15
1.62   
3
Mechanical Properties
Density
  
  
Density At Room Temperature
8.54 g/cm3   
99+
21.02 g/cm3   
12
Density When Liquid (at m.p.)
8.37 g/cm3   
25
18.90 g/cm3   
4
Tensile Strength
120.00 MPa   
15
1,070.00 MPa   
3
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 2000 K
Not Available   
0.00 (Pa)   
29
Elasticity properties
  
  
Shear Modulus
24.70 GPa   
31
178.00 GPa   
3
Bulk Modulus
40.50 GPa   
31
370.00 GPa   
2
Young's Modulus
61.40 GPa   
33
463.00 GPa   
2
Poisson Ratio
0.25   
25
0.30   
14
Other Mechanical Properties
Sectile   
Ductile, Malleable   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
8.55   
38
21.02   
5
Magnetic Ordering
Paramagnetic   
Paramagnetic   
Electrical Properties
  
  
Electrical Property
Conductor   
Conductor   
Resistivity
926.00 nΩ·m   
2
193.00 nΩ·m   
20
Electrical Conductivity
0.01 106/cm Ω   
99+
0.05 106/cm Ω   
33
Electron Affinity
50.00 kJ/mol   
21
14.50 kJ/mol   
35
Thermal Properties
Specific Heat
0.17 J/(kg K)   
34
0.13 J/(kg K)   
39
Molar Heat Capacity
27.70 J/mol·K   
14
25.48 J/mol·K   
38
Thermal Conductivity
10.70 W/m·K   
99+
48.00 W/m·K   
31
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
9.90 µm/(m·K)   
40
6.20 µm/(m·K)   
99+
Enthalpy
  
  
Enthalpy of Vaporization
230.00 kJ/mol   
39
707.10 kJ/mol   
3
Enthalpy of Fusion
11.05 kJ/mol   
32
33.05 kJ/mol   
2
Enthalpy of Atomization
301.00 kJ/mol   
36
791.00 kJ/mol   
2
Standard Molar Entropy
75.60 J/mol.K   
7
36.90 J/mol.K   
99+
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