Home
 Compare Metals

Berkelium vs Rhenium

Berkelium
Rhenium
Rhenium vs Berkelium


Periodic Table
Symbol
Bk  
Re  
Group Number
14  
4
7  
11
Period Number
7  
6  
Block
f block  
d block  
Element Family
Actinide  
Transition Metal  
CAS Number
7440406  
99+
7440155  
99+
Space Group Name
P63/mmc  
P63/mmc  
Space Group Number
194.00  
7
194.00  
7
Facts
Interesting Facts
  • X-ray Diffraction- different compounds of Berkelium metals are identified using it.
    Commercial uses of Berkelium metal are not yet discovered.
  
  • Chemical properties of Rhenium are similar to Manganese.
  • Rhenium metal is created while refining Molybdenum.
  
Sources
Bombarding Americium with Alpha Particles.  
Found in Minerals, Mining, Ores of Minerals  
History
  
  
Who Discovered
Lawrence Berkeley National Laboratory  
Masataka Ogawa  
Discovery
In 1949  
In 1908  
Abundance
  
  
Abundance In Universe
0.00 %  
36
0.00 %  
30
Abundance In Sun
0.00 %  
30
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
0.00 %  
24
Uses
Uses & Benefits
  • This metal is very rare and has no commercial uses.
  
  • 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
986.00 °C  
99+
3,180.00 °C  
2
Boiling Point
2,627.00 °C  
99+
5,627.00 °C  
2
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silver  
Silvery Gray  
Luster
Metallic  
Metallic  
Hardness
  
  
Mohs Hardness
6.00  
6
7.00  
3
Brinell Hardness
260.00 MPa  
99+
1,320.00 MPa  
8
Vickers Hardness
1,070.00 MPa  
16
1,350.00 MPa  
12
Speed of Sound
2,560.00 m/s  
99+
4,700.00 m/s  
19
Optical Properties
  
  
Refractive Index
1.30  
99+
1.90  
18
Reflectivity
61.00 %  
22
70.00 %  
13
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Bk  
Re  
Isotopes
  
  
Known Isotopes
14  
25
33  
6
Electronegativity
  
  
Pauling Electronegativity
1.30  
33
1.90  
12
Sanderson Electronegativity
1.30  
25
1.90  
13
Allred Rochow Electronegativity
1.20  
28
1.46  
16
Mulliken-Jaffe Electronegativity
1.30  
33
1.90  
13
Allen Electronegativity
2.70  
1
1.60  
24
Electropositivity
  
  
Pauling Electropositivity
2.70  
22
2.10  
99+
Ionization Energies
  
  
1st Energy Level
601.00 kJ/mol  
99+
760.00 kJ/mol  
20
2nd Energy Level
1,186.00 kJ/mol  
99+
1,260.00 kJ/mol  
99+
3rd Energy Level
2,152.00 kJ/mol  
99+
2,510.00 kJ/mol  
99+
4th Energy Level
3,434.00 kJ/mol  
99+
3,640.00 kJ/mol  
99+
5th Energy Level
6,010.00 kJ/mol  
99+
7,600.00 kJ/mol  
20
6th Energy Level
6,010.00 kJ/mol  
99+
7,600.00 kJ/mol  
37
7th Energy level
6,010.00 kJ/mol  
99+
7,600.00 kJ/mol  
31
8th Energy Level
6,010.00 kJ/mol  
99+
5,560.00 kJ/mol  
99+
9th Energy Level
6,010.00 kJ/mol  
99+
5,560.00 kJ/mol  
99+
10th Energy Level
6,010.00 kJ/mol  
99+
7,600.00 kJ/mol  
31
11th Energy Level
6,010.00 kJ/mol  
99+
7,600.00 kJ/mol  
30
12th Energy Level
60,100.00 kJ/mol  
16
7,600.00 kJ/mol  
99+
13th Energy Level
6,010.00 kJ/mol  
99+
7,600.00 kJ/mol  
23
14th Energy Level
6,010.00 kJ/mol  
32
7,600.00 kJ/mol  
20
15th Energy Level
60,100.00 kJ/mol  
99+
76,000.00 kJ/mol  
20
16th Energy Level
60,100.00 kJ/mol  
33
76,000.00 kJ/mol  
15
17th Energy Level
601.00 kJ/mol  
99+
760.10 kJ/mol  
36
18th Energy Level
6,010.00 kJ/mol  
99+
7,600.00 kJ/mol  
26
19th Energy Level
601.00 kJ/mol  
99+
760.40 kJ/mol  
33
20th Energy Level
601.00 kJ/mol  
99+
760.00 kJ/mol  
27
21st Energy Level
6,010.00 kJ/mol  
18
760.00 kJ/mol  
99+
22nd Energy Level
601.00 kJ/mol  
99+
760.00 kJ/mol  
21
23rd Energy Level
6,010.00 kJ/mol  
19
760.00 kJ/mol  
99+
24th Energy Level
601.00 kJ/mol  
99+
760.00 kJ/mol  
18
25th Energy Level
601.00 kJ/mol  
99+
760.00 kJ/mol  
18
26th Energy Level
601.00 kJ/mol  
99+
760.00 kJ/mol  
18
27th Energy Level
601.00 kJ/mol  
99+
760.00 kJ/mol  
17
28th Energy Level
601.00 kJ/mol  
99+
760.00 kJ/mol  
23
29th Energy Level
601.00 kJ/mol  
99+
760.00 kJ/mol  
24
30th Energy Level
601.00 kJ/mol  
99+
760.00 kJ/mol  
18
Electrochemical Equivalent
3.07 g/amp-hr  
19
0.99 g/amp-hr  
99+
Electron Work Function
4.90 eV  
12
4.96 eV  
11
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity  
Corrosion, Ionization, Radioactive Isotopes, Solubility  
Atomic
Atomic Number
97  
21
75  
99+
Electron Configuration
[Rn] 5f9 7s2  
[Xe] 4f14 5d5 6s2  
Crystal Structure
Double Hexagonal Close Packed (DHCP)  
Hexagonal Close Packed (HCP)  
Crystal Lattice
DHCP-Crystal-Structure-of-Berkelium.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
97  
21
75  
40
Number of Neutrons
150  
12
111  
27
Number of Electrons
97  
21
75  
40
Radius of an Atom
  
  
Atomic Radius
170.00 pm  
24
137.00 pm  
99+
Covalent Radius
170.00 pm  
27
151.00 pm  
36
Van der Waals Radius
244.00 pm  
14
200.00 pm  
35
Atomic Weight
247.00 amu  
18
186.21 amu  
36
Atomic Volume
13.39 cm3/mol  
99+
8.85 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Curium
  
Tungsten
  
Next Element
Californium
  
Osmium
  
Valence Electron Potential
45.50 (-eV)  
37
180.00 (-eV)  
3
Lattice Constant
341.60 pm  
99+
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  
38
1.62  
17
Mechanical
Density
  
  
Density At Room Temperature
14.78 g/cm3  
23
21.02 g/cm3  
12
Density When Liquid (at m.p.)
13.25 g/cm3  
29
18.90 g/cm3  
14
Tensile Strength
70.00 MPa  
31
1,070.00 MPa  
3
Viscosity
0.00  
25
0.00  
25
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
22
0.00 (Pa)  
37
Vapor Pressure at 2000 K
0.00 (Pa)  
30
0.00 (Pa)  
40
Elasticity properties
  
  
Shear Modulus
27.00 GPa  
34
178.00 GPa  
3
Bulk Modulus
13.00 GPa  
99+
370.00 GPa  
2
Young's Modulus
13.00 GPa  
99+
463.00 GPa  
2
Poisson Ratio
0.35  
9
0.30  
14
Other Mechanical Properties
-  
Ductile, Malleable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
14.00  
25
21.02  
14
Magnetic Ordering
Paramagnetic  
Paramagnetic  
Permeability
0.00 H/m  
13
0.00 H/m  
8
Susceptibility
0.00  
24
0.00  
26
Electrical Properties
  
  
Electrical Property
Conductor  
Conductor  
Resistivity
7.60 nΩ·m  
99+
193.00 nΩ·m  
20
Electrical Conductivity
0.10 106/cm Ω  
25
0.05 106/cm Ω  
38
Electron Affinity
0.00 kJ/mol  
99+
14.50 kJ/mol  
99+
Thermal
Specific Heat
0.10 J/(kg K)  
99+
0.13 J/(kg K)  
40
Molar Heat Capacity
27.00 J/mol·K  
29
25.48 J/mol·K  
99+
Thermal Conductivity
10.00 W/m·K  
99+
48.00 W/m·K  
31
Critical Temperature
1,323.00 K  
99+
3,459.00 K  
2
Thermal Expansion
13.25 µm/(m·K)  
36
6.20 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
380.00 kJ/mol  
27
707.10 kJ/mol  
4
Enthalpy of Fusion
13.25 kJ/mol  
31
33.05 kJ/mol  
2
Enthalpy of Atomization
601.00 kJ/mol  
11
791.00 kJ/mol  
2
Standard Molar Entropy
52.00 J/mol.K  
37
36.90 J/mol.K  
99+
Periodic Table >>
<< All

Compare Actinide Series

Actinide Series

Actinide Series

» More Actinide Series

Compare Actinide Series

» More Compare Actinide Series
Home | About | Contact | Disclaimer | Terms of use
© A softusvista inc. venture!