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Berkelium
Berkelium

Rhenium
Rhenium



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Berkelium
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Berkelium vs Rhenium

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1 Periodic Table
1.1 Symbol
Bk
Re
1.2 Group Number
NA7
Gadolinium
0 17
1.3 Period Number
76
Lithium
2 7
1.4 Block
f block
d block
1.5 Element Family
Actinide
Transition Metal
1.6 CAS Number
74404067440155
Aluminium
7429905 54386242
1.7 Space Group Name
P63/mmc
P63/mmc
1.8 Space Group Number
194.00194.00
Plutonium
11 229
2 Facts
2.1 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.
2.2 Sources
Bombarding Americium with Alpha Particles.
Found in Minerals, Mining, Ores of Minerals
2.3 History
2.3.1 Who Discovered
Lawrence Berkeley National Laboratory
Masataka Ogawa
2.3.2 Discovery
In 1949
In 1908
2.4 Abundance
2.4.1 Abundance In Universe
NA2 * 10-8 %
Thallium
5E-09 0.11
2.4.2 Abundance In Sun
~-9999 %~0.00000001 %
Beryllium
1E-08 0.1
2.4.3 Abundance In Meteorites
NA0.00 %
Gold
1.7E-07 22
1.2.1 Abundance In Earth's Crust
NA0.00 %
Radium
9.9E-12 8.1
1.3.1 Abundance In Oceans
NA0.00 %
Protactinium
2E-23 1.1
1.6.1 Abundance In Humans
NANA
Radium
1E-13 1.4
2 Uses
2.1 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.
2.1.1 Industrial Uses
NA
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
2.1.2 Medical Uses
NA
NA
2.1.3 Other Uses
NA
Alloys
2.2 Biological Properties
2.2.1 Toxicity
Unknown
Low Toxic
2.2.2 Present in Human Body
2.2.3 In Blood
0.00 Blood/mg dm-3NA
Plutonium
0 1970
2.4.1 In Bone
0.00 p.p.m.NA
Plutonium
0 170000
4 Physical
4.1 Melting Point
986.00 °C3,180.00 °C
Francium
27 3410
4.3 Boiling Point
2,627.00 °C5,627.00 °C
Flerovium
147 5660
4.4 Appearance
4.4.1 Physical State
Solid
Solid
4.4.2 Color
Silver
Silvery Gray
4.4.3 Luster
Metallic
Metallic
4.5 Hardness
4.5.1 Mohs Hardness
NA7.00
Cesium
0.2 8.5
4.5.4 Brinell Hardness
NA1,320.00 MPa
Cesium
0.14 3490
4.5.5 Vickers Hardness
NA1,350.00 MPa
Palladium
121 3430
4.6 Speed of Sound
NA4,700.00 m/s
Thallium
818 16200
5.2 Optical Properties
5.2.1 Refractive Index
NANA
Mercury
1.000933 1.7229
5.3.4 Reflectivity
NANA
Molybdenum
58 97
5.4 Allotropes
5.4.2 α Allotropes
Not Available
Not Available
5.4.3 β Allotropes
Not Available
Not Available
5.4.4 γ Allotropes
Not Available
Not Available
6 Chemical
6.1 Chemical Formula
Bk
Re
6.2 Isotopes
6.2.1 Known Isotopes
1433
Tennessine
0 38
7.2 Electronegativity
7.2.1 Pauling Electronegativity
1.301.90
Francium
0.7 2.54
7.2.2 Sanderson Electronegativity
NANA
Cesium
0.22 2.56
7.3.1 Allred Rochow Electronegativity
1.201.46
Cesium
0.86 1.82
7.5.2 Mulliken-Jaffe Electronegativity
NANA
Cesium
0.62 2.48
7.5.3 Allen Electronegativity
2.701.60
Cesium
0.659 2.7
7.6 Electropositivity
7.6.1 Pauling Electropositivity
2.702.10
Gold
1.46 3.3
7.7 Ionization Energies
7.7.1 1st Energy Level
601.00 kJ/mol760.00 kJ/mol
Cesium
375.7 26130
7.8.1 2nd Energy Level
1,186.00 kJ/mol1,260.00 kJ/mol
Ruthenium
710.2162 28750
7.8.2 3rd Energy Level
2,152.00 kJ/mol2,510.00 kJ/mol
Osmium
1600 34230
7.9.3 4th Energy Level
3,434.00 kJ/mol3,640.00 kJ/mol
Thorium
2780 37066
8.2.2 5th Energy Level
NANA
Dubnium
4305.2 97510
8.2.3 6th Energy Level
NANA
Seaborgium
5715.8 105800
8.3.2 7th Energy level
NANA
Bohrium
7226.8 114300
8.3.4 8th Energy Level
NANA
Hassium
8857.4 125300
8.3.5 9th Energy Level
NANA
Yttrium
14110 134700
8.3.7 10th Energy Level
NANA
Strontium
17100 144300
8.3.9 11th Energy Level
NANA
Yttrium
19900 169988
8.3.11 12th Energy Level
NANA
Molybdenum
22219 189368
8.3.12 13th Energy Level
NANA
Molybdenum
26930 76015
8.4.2 14th Energy Level
NANA
Molybdenum
29196 86450
8.5.2 15th Energy Level
NANA
Manganese
41987 97510
8.5.4 16th Energy Level
NANA
Iron
47206 109480
8.5.6 17th Energy Level
NANA
Cobalt
52737 122200
8.5.8 18th Energy Level
NANA
Nickel
58570 134810
8.5.9 19th Energy Level
NANA
Copper
64702 148700
8.5.11 20th Energy Level
NANA
Molybdenum
80400 171200
8.5.13 21st Energy Level
NANA
Molybdenum
87000 179100
8.5.14 22nd Energy Level
NANA
Molybdenum
93400 184900
8.5.16 23rd Energy Level
NANA
Molybdenum
98420 198800
8.5.18 24th Energy Level
NANA
Molybdenum
104400 195200
8.5.19 25th Energy Level
NANA
Molybdenum
121900 121900
8.5.21 26th Energy Level
NANA
Molybdenum
127700 127700
8.5.23 27th Energy Level
NANA
Molybdenum
133800 133800
8.5.25 28th Energy Level
NANA
Molybdenum
139800 139800
8.5.26 29th Energy Level
NANA
Molybdenum
148100 148100
8.5.28 30th Energy Level
NANA
Molybdenum
154500 154500
8.6 Electrochemical Equivalent
3.07 g/amp-hr0.99 g/amp-hr
Beryllium
0.16812 8.3209
8.7 Electron Work Function
NA4.96 eV
Cesium
2.14 5.65
8.8 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Corrosion, Ionization, Radioactive Isotopes, Solubility
9 Atomic
9.1 Atomic Number
9775
Lithium
3 117
9.2 Electron Configuration
[Rn] 5f9 7s2
[Xe] 4f14 5d5 6s2
9.3 Crystal Structure
Double Hexagonal Close Packed (DHCP)
Hexagonal Close Packed (HCP)
9.3.1 Crystal Lattice
9.4 Atom
9.4.1 Number of Protons
9775
Lithium
3 117
9.4.3 Number of Neutrons
150111
Lithium
4 184
9.4.6 Number of Electrons
9775
Lithium
3 117
9.5 Radius of an Atom
9.5.1 Atomic Radius
170.00 pm137.00 pm
Beryllium
112 265
9.5.3 Covalent Radius
NA151.00 pm
Beryllium
96 260
9.5.5 Van der Waals Radius
NA200.00 pm
Zinc
139 348
9.6 Atomic Weight
247.00 amu186.21 amu
Lithium
6.94 294
9.7 Atomic Volume
NA8.85 cm3/mol
Manganese
1.39 71.07
9.8 Adjacent Atomic Numbers
9.8.1 Previous Element
9.8.2 Next Element
9.9 Valence Electron Potential
45.50 (-eV)180.00 (-eV)
Francium
8 392.42
9.10 Lattice Constant
341.60 pm276.10 pm
Beryllium
228.58 891.25
9.11 Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, 2 π/3
9.12 Lattice C/A Ratio
NA1.62
Beryllium
1.567 1.886
10 Mechanical
10.1 Density
10.1.1 Density At Room Temperature
14.78 g/cm321.02 g/cm3
Lithium
0.534 40.7
10.1.3 Density When Liquid (at m.p.)
13.25 g/cm318.90 g/cm3
Lithium
0.512 20
10.3 Tensile Strength
NA1,070.00 MPa
Indium
2.5 11000
10.4 Viscosity
NANA
Mercury
0.001526 0.001526
10.6 Vapor Pressure
10.6.1 Vapor Pressure at 1000 K
NANA
Cerium
2.47E-11 121
10.6.2 Vapor Pressure at 2000 K
NA0.00 (Pa)
Tungsten
2.62E-10 774
11.2 Elasticity properties
11.2.1 Shear Modulus
NA178.00 GPa
Potassium
1.3 222
11.5.2 Bulk Modulus
NA370.00 GPa
Cesium
1.6 462
11.5.4 Young's Modulus
NA463.00 GPa
Cesium
1.7 528
11.6 Poisson Ratio
NA0.30
Beryllium
0.032 0.47
11.8 Other Mechanical Properties
NA
Ductile, Malleable
12 Magnetic
12.1 Magnetic Characteristics
12.1.1 Specific Gravity
14.0021.02
Lithium
0.53 4500
12.1.3 Magnetic Ordering
Paramagnetic
Paramagnetic
12.1.4 Permeability
NANA
Bismuth
1.25643E-06 0.0063
12.1.6 Susceptibility
NANA
Bismuth
-0.000166 200000
12.3 Electrical Properties
12.3.1 Electrical Property
Conductor
Conductor
12.3.2 Resistivity
NA193.00 nΩ·m
Thallium
0.18 961
12.4.1 Electrical Conductivity
NA0.05 106/cm Ω
Plutonium
0.00666 0.63
12.6.1 Electron Affinity
NA14.50 kJ/mol
Mercury
0 222.8
13 Thermal
13.1 Specific Heat
NA0.13 J/(kg K)
Americium
0.11 3.6
13.4 Molar Heat Capacity
NA25.48 J/mol·K
Beryllium
16.443 62.7
14.2 Thermal Conductivity
10.00 W/m·K48.00 W/m·K
Neptunium
6.3 429
14.3 Critical Temperature
NANA
Ytterbium
26.3 3223
14.4 Thermal Expansion
NA6.20 µm/(m·K)
Tungsten
4.5 97
14.7 Enthalpy
14.7.1 Enthalpy of Vaporization
NA707.10 kJ/mol
Zinc
7.32 799.1
14.8.2 Enthalpy of Fusion
NA33.05 kJ/mol
Cesium
2.1 35.23
14.8.4 Enthalpy of Atomization
NA791.00 kJ/mol
Mercury
61.5 837
14.10 Standard Molar Entropy
NA36.90 J/mol.K
Beryllium
9.5 198.1