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Rhenium Lawrencium Comparison


Lawrencium Rhenium comparison


Periodic Table

Symbol
Re   
Lr   

Group Number
7   
11
Not Available   

Period Number
6   
7   

Block
d block   
d block   

Element Family
Transition Metal   
Actinide   

CAS Number
7440155   
99+
22537195   
15

Space Group Name
P63/mmc   
Not Available   

Space Group Number
194.00   
5
Not Available   

Facts

Interesting Facts
  • Chemical properties of Rhenium are similar to Manganese.
  • Rhenium metal is created while refining Molybdenum.
  
  • It is synthetically produced metal.
  • Radiation hazard can be produce by it.
  

Sources
Found in Minerals, Mining, Ores of Minerals   
Bombarding Californium-252 with Boron Nuclei, Found in Minerals, Mining   

History
  
  

Who Discovered
Masataka Ogawa   
Lawrence Berkeley National Laboratory and Joint Institute for Nuclear Research   

Discovery
In 1908   
In 1961–1971   

Abundance
  
  

Abundance In Universe
2 * 10-8 %   
29
Not Available   

Abundance In Sun
~0.00000001 %   
29
~-9999 %   

Abundance In Meteorites
0.00 %   
99+
Not Available   

Abundance In Earth's Crust
0.00 %   
99+
Not Available   

Abundance In Oceans
0.00 %   
34
Not Available   

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.
  
  • Currently known uses of Lawrencium metal are limited to research purpose only.
  

Industrial Uses
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry   
NA   

Medical Uses
NA   
NA   

Other Uses
Alloys   
NA   

Biological Properties
  
  

Toxicity
Low Toxic   
Unknown   

Present in Human Body
No   
No   

In Blood
Not Available   
0.00 Blood/mg dm-3   
37

In Bone
Not Available   
0.00 p.p.m.   
36

Physical Properties

Melting Point
3,180.00 °C   
2
1,627.00 °C   
20

Boiling Point
5,627.00 °C   
2
Not Available   

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery Gray   
Silver   

Luster
Metallic   
Unknown Luster   

Hardness
  
  

Mohs Hardness
7.00   
3
Not Available   

Brinell Hardness
1,320.00 MPa   
8
Not Available   

Vickers Hardness
1,350.00 MPa   
7
Not Available   

Speed of Sound
4,700.00 m/s   
15
Not Available   

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   
Lr   

Isotopes
  
  

Known Isotopes
33   
6
10   
28

Electronegativity
  
  

Pauling Electronegativity
1.90   
11
Not Available   

Allred Rochow Electronegativity
1.46   
15
Not Available   

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
470.00 kJ/mol   
99+

2nd Energy Level
1,260.00 kJ/mol   
99+
1,428.00 kJ/mol   
99+

3rd Energy Level
2,510.00 kJ/mol   
99+
2,228.00 kJ/mol   
99+

4th Energy Level
3,640.00 kJ/mol   
99+
4,910.00 kJ/mol   
21

Electrochemical Equivalent
0.99 g/amp-hr   
99+
3.23 g/amp-hr   
11

Electron Work Function
4.96 eV   
7
Not Available   

Other Chemical Properties
Corrosion, Ionization, Radioactive Isotopes, Solubility   
Ionization, Radioactive Isotopes   

Atomic Properties

Atomic Number
75   
99+
103   
15

Electron Configuration
[Xe] 4f14 5d5 6s2   
[Rn] 5f14 7s2 7p1   

Crystal Structure
Hexagonal Close Packed (HCP)   
Hexagonal Close Packed (HCP)   

Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
BCC-Crystal-Structure-.jpg#100   

Atom
  
  

Number of Protons
75   
40
103   
15

Number of Neutrons
111   
26
157   
7

Number of Electrons
75   
40
103   
15

Radius of an Atom
  
  

Atomic Radius
137.00 pm   
40
Not Available   

Covalent Radius
151.00 pm   
34
Not Available   

Van der Waals Radius
200.00 pm   
28
246.00 pm   
8

Atomic Weight
186.21 amu   
36
266.00 amu   
12

Atomic Volume
8.85 cm3/mol   
99+
Not Available   

Adjacent Atomic Numbers
  
  

Previous Element
Tungsten
  
Nobelium
  

Next Element
Osmium
  

Valence Electron Potential
180.00 (-eV)   
3
Not Available   

Lattice Constant
276.10 pm   
99+
Not Available   

Lattice Angles
π/2, π/2, 2 π/3   
NA   

Lattice C/A Ratio
1.62   
3
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
21.02 g/cm3   
12
Not Available   

Density When Liquid (at m.p.)
18.90 g/cm3   
4
Not Available   

Tensile Strength
1,070.00 MPa   
3
Not Available   

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
Not Available   

Bulk Modulus
370.00 GPa   
2
Not Available   

Young's Modulus
463.00 GPa   
2
Not Available   

Poisson Ratio
0.30   
14
0.32   
12

Other Mechanical Properties
Ductile, Malleable   
Unknown   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
21.02   
5
Not Available   

Magnetic Ordering
Paramagnetic   
Unknown   

Electrical Properties
  
  

Electrical Property
Conductor   
Unknown   

Resistivity
193.00 nΩ·m   
20
Not Available   

Electrical Conductivity
0.05 106/cm Ω   
33
Not Available   

Electron Affinity
14.50 kJ/mol   
35
Not Available   

Thermal Properties

Specific Heat
0.13 J/(kg K)   
39
Not Available   

Molar Heat Capacity
25.48 J/mol·K   
38
Not Available   

Thermal Conductivity
48.00 W/m·K   
31
Not Available   

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
6.20 µm/(m·K)   
99+
Not Available   

Enthalpy
  
  

Enthalpy of Vaporization
707.10 kJ/mol   
3
Not Available   

Enthalpy of Fusion
33.05 kJ/mol   
2
Not Available   

Enthalpy of Atomization
791.00 kJ/mol   
2
Not Available   

Standard Molar Entropy
36.90 J/mol.K   
99+
Not Available   

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