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Lawrencium vs Rhenium

Lawrencium
Rhenium
Rhenium vs Lawrencium


Periodic Table
Symbol
Lr  
Re  
Group Number
3  
15
7  
11
Period Number
7  
6  
Block
d block  
d block  
Element Family
Actinide  
Transition Metal  
CAS Number
22537195  
15
7440155  
99+
Space Group Name
-  
P63/mmc  
Space Group Number
225.00  
3
194.00  
7
Facts
Interesting Facts
  • It is synthetically produced metal.
  • Radiation hazard can be produce by it.
  
  • Chemical properties of Rhenium are similar to Manganese.
  • Rhenium metal is created while refining Molybdenum.
  
Sources
Bombarding Californium-252 with Boron Nuclei, Found in Minerals, Mining  
Found in Minerals, Mining, Ores of Minerals  
History
  
  
Who Discovered
Lawrence Berkeley National Laboratory and Joint Institute for Nuclear Research  
Masataka Ogawa  
Discovery
In 1961–1971  
In 1908  
Abundance
  
  
Abundance In Universe
0.00 %  
40
0.00 %  
30
Abundance In Sun
-  
0.00 %  
29
Abundance In Meteorites
0.00 %  
99+
0.00 %  
99+
Abundance In Earth's Crust
0.00 %  
99+
0.00 %  
99+
Abundance In Oceans
-  
0.00 %  
34
Abundance In Humans
-  
0.00 %  
24
Uses
Uses & Benefits
  • Currently known uses of Lawrencium metal are limited to research purpose only.
  
  • 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
-  
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry  
Medical Uses
-  
-  
Other Uses
-  
Alloys  
Biological Properties
  
  
Toxicity
-  
Low Toxic  
Present in Human Body
No  
No  
In Blood
0.00 Blood/mg dm-3  
40
0.00 Blood/mg dm-3  
37
In Bone
0.00 p.p.m.  
99+
0.00 p.p.m.  
99+
Physical
Melting Point
1,627.00 °C  
20
3,180.00 °C  
2
Boiling Point
0.00 °C  
99+
5,627.00 °C  
2
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silver  
Silvery Gray  
Luster
Unknown Luster  
Metallic  
Hardness
  
  
Mohs Hardness
-  
7.00  
3
Brinell Hardness
500.00 MPa  
28
1,320.00 MPa  
8
Vickers Hardness
500.00 MPa  
35
1,350.00 MPa  
12
Speed of Sound
2,760.00 m/s  
99+
4,700.00 m/s  
19
Optical Properties
  
  
Refractive Index
1.30  
99+
1.90  
18
Reflectivity
65.00 %  
18
70.00 %  
13
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Lr  
Re  
Isotopes
  
  
Known Isotopes
10  
28
33  
6
Electronegativity
  
  
Pauling Electronegativity
1.30  
33
1.90  
12
Sanderson Electronegativity
1.30  
25
1.90  
13
Allred Rochow Electronegativity
1.30  
25
1.46  
16
Mulliken-Jaffe Electronegativity
1.30  
33
1.90  
13
Allen Electronegativity
1.30  
40
1.60  
24
Electropositivity
  
  
Pauling Electropositivity
2.00  
99+
2.10  
99+
Ionization Energies
  
  
1st Energy Level
470.00 kJ/mol  
99+
760.00 kJ/mol  
20
2nd Energy Level
1,428.00 kJ/mol  
99+
1,260.00 kJ/mol  
99+
3rd Energy Level
2,228.00 kJ/mol  
99+
2,510.00 kJ/mol  
99+
4th Energy Level
4,910.00 kJ/mol  
31
3,640.00 kJ/mol  
99+
5th Energy Level
4,780.00 kJ/mol  
99+
7,600.00 kJ/mol  
20
6th Energy Level
4,780.00 kJ/mol  
99+
7,600.00 kJ/mol  
37
7th Energy level
4,780.00 kJ/mol  
99+
7,600.00 kJ/mol  
31
8th Energy Level
4,780.00 kJ/mol  
99+
5,560.00 kJ/mol  
99+
9th Energy Level
4,780.00 kJ/mol  
99+
5,560.00 kJ/mol  
99+
10th Energy Level
5,800.00 kJ/mol  
99+
7,600.00 kJ/mol  
31
11th Energy Level
5,800.00 kJ/mol  
99+
7,600.00 kJ/mol  
30
12th Energy Level
47,800.00 kJ/mol  
22
7,600.00 kJ/mol  
99+
13th Energy Level
4,780.00 kJ/mol  
99+
7,600.00 kJ/mol  
23
14th Energy Level
1,186.00 kJ/mol  
99+
7,600.00 kJ/mol  
20
15th Energy Level
47,800.00 kJ/mol  
99+
76,000.00 kJ/mol  
20
16th Energy Level
470.00 kJ/mol  
99+
76,000.00 kJ/mol  
15
17th Energy Level
1,186.00 kJ/mol  
15
760.10 kJ/mol  
36
18th Energy Level
4,780.00 kJ/mol  
99+
7,600.00 kJ/mol  
26
19th Energy Level
1,186.00 kJ/mol  
12
760.40 kJ/mol  
33
20th Energy Level
860.00 kJ/mol  
17
760.00 kJ/mol  
27
21st Energy Level
1,186.00 kJ/mol  
27
760.00 kJ/mol  
99+
22nd Energy Level
388.00 kJ/mol  
99+
760.00 kJ/mol  
21
23rd Energy Level
1,180.00 kJ/mol  
32
760.00 kJ/mol  
99+
24th Energy Level
546.10 kJ/mol  
99+
760.00 kJ/mol  
18
25th Energy Level
0.00 kJ/mol  
99+
760.00 kJ/mol  
18
26th Energy Level
594.70 kJ/mol  
99+
760.00 kJ/mol  
18
27th Energy Level
470.00 kJ/mol  
99+
760.00 kJ/mol  
17
28th Energy Level
478.00 kJ/mol  
99+
760.00 kJ/mol  
23
29th Energy Level
580.00 kJ/mol  
99+
760.00 kJ/mol  
24
30th Energy Level
0.00 kJ/mol  
99+
760.00 kJ/mol  
18
Electrochemical Equivalent
3.23 g/amp-hr  
12
0.99 g/amp-hr  
99+
Electron Work Function
4.90 eV  
12
4.96 eV  
11
Other Chemical Properties
Ionization, Radioactive Isotopes  
Corrosion, Ionization, Radioactive Isotopes, Solubility  
Atomic
Atomic Number
103  
15
75  
99+
Electron Configuration
[Rn] 5f14 7s2 7p1  
[Xe] 4f14 5d5 6s2  
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
103  
15
75  
40
Number of Neutrons
157  
8
111  
27
Number of Electrons
103  
15
75  
40
Radius of an Atom
  
  
Atomic Radius
162.00 pm  
28
137.00 pm  
99+
Covalent Radius
162.00 pm  
31
151.00 pm  
36
Van der Waals Radius
246.00 pm  
12
200.00 pm  
35
Atomic Weight
266.00 amu  
12
186.21 amu  
36
Atomic Volume
35.10 cm3/mol  
7
8.85 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Nobelium
  
Tungsten
  
Next Element
Rutherfordium
  
Osmium
  
Valence Electron Potential
0.00 (-eV)  
99+
180.00 (-eV)  
3
Lattice Constant
530.00 pm  
14
276.10 pm  
99+
Lattice Angles
-  
π/2, π/2, 2 π/3  
Lattice C/A Ratio
1.60  
22
1.62  
17
Mechanical
Density
  
  
Density At Room Temperature
15.00 g/cm3  
22
21.02 g/cm3  
12
Density When Liquid (at m.p.)
15.60 g/cm3  
20
18.90 g/cm3  
14
Tensile Strength
80.00 MPa  
29
1,070.00 MPa  
3
Viscosity
0.00  
25
0.00  
25
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
37
0.00 (Pa)  
37
Vapor Pressure at 2000 K
0.00 (Pa)  
37
0.00 (Pa)  
40
Elasticity properties
  
  
Shear Modulus
30.00 GPa  
27
178.00 GPa  
3
Bulk Modulus
15.00 GPa  
99+
370.00 GPa  
2
Young's Modulus
210.00 GPa  
10
463.00 GPa  
2
Poisson Ratio
0.32  
12
0.30  
14
Other Mechanical Properties
-  
Ductile, Malleable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
15.60  
22
21.02  
14
Magnetic Ordering
-  
Paramagnetic  
Permeability
0.00 H/m  
13
0.00 H/m  
8
Susceptibility
0.00  
23
0.00  
26
Electrical Properties
  
  
Electrical Property
-  
Conductor  
Resistivity
8.37 nΩ·m  
99+
193.00 nΩ·m  
20
Electrical Conductivity
0.00 106/cm Ω  
99+
0.05 106/cm Ω  
38
Electron Affinity
50.00 kJ/mol  
26
14.50 kJ/mol  
99+
Thermal
Specific Heat
0.22 J/(kg K)  
29
0.13 J/(kg K)  
40
Molar Heat Capacity
27.00 J/mol·K  
29
25.48 J/mol·K  
99+
Thermal Conductivity
0.00 W/m·K  
99+
48.00 W/m·K  
31
Critical Temperature
1,323.00 K  
99+
3,459.00 K  
2
Thermal Expansion
8.50 µm/(m·K)  
99+
6.20 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
341.90 kJ/mol  
37
707.10 kJ/mol  
4
Enthalpy of Fusion
-  
33.05 kJ/mol  
2
Enthalpy of Atomization
580.00 kJ/mol  
14
791.00 kJ/mol  
2
Standard Molar Entropy
54.80 J/mol.K  
35
36.90 J/mol.K  
99+
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