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Rhenium
Rhenium

Cesium
Cesium



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1 Periodic Table
1.1 Symbol
Re
Cs
1.2 Group Number
71
Gadolinium
0 17
1.3 Period Number
66
Lithium
2 7
1.4 Block
d block
s block
1.5 Element Family
Transition Metal
Alkali
1.6 CAS Number
74401557440462
Aluminium
7429905 54386242
1.7 Space Group Name
P63/mmc
Im_ 3m
1.8 Space Group Number
194.00229.00
Plutonium
11 229
2 Facts
2.1 Interesting Facts
  • Chemical properties of Rhenium are similar to Manganese.
  • Rhenium metal is created while refining Molybdenum.
Not Available
2.2 Sources
Found in Minerals, Mining, Ores of Minerals
Earth's crust, Found in Minerals, Mining, Ores of Minerals
2.3 History
2.3.1 Who Discovered
Masataka Ogawa
Robert Bunsen and Gustav Kirchhoff
2.3.2 Discovery
In 1908
In 1860
2.4 Abundance
2.4.1 Abundance In Universe
2 * 10-8 %8 * 10-8 %
Thallium
5E-09 0.11
2.4.2 Abundance In Sun
~0.00000001 %~0.0000008 %
Beryllium
1E-08 0.1
2.4.3 Abundance In Meteorites
0.00 %0.00 %
Gold
1.7E-07 22
2.4.4 Abundance In Earth's Crust
0.00 %0.00 %
Radium
9.9E-12 8.1
2.4.5 Abundance In Oceans
0.00 %0.00 %
Protactinium
2E-23 1.1
2.4.6 Abundance In Humans
NA0.00 %
Radium
1E-13 1.4
3 Uses
3.1 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.
  • The most common use of cesium metal is as a drilling fluid. It is also used in optical glass manufacturing.
  • In vacuum tubes and radiation monitor equipment this metal is used as a catalyst promoter.
3.1.1 Industrial Uses
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry
3.1.2 Medical Uses
NA
NA
3.1.3 Other Uses
Alloys
Alloys
3.2 Biological Properties
3.2.1 Toxicity
Low Toxic
Mildly Toxic
3.2.2 Present in Human Body
3.2.3 In Blood
NA0.00 Blood/mg dm-3
Plutonium
0 1970
3.2.4 In Bone
NA0.05 p.p.m.
Plutonium
0 170000
4 Physical
4.1 Melting Point
3,180.00 °C28.50 °C
Francium
27 3410
4.2 Boiling Point
5,627.00 °C678.40 °C
Flerovium
147 5660
4.3 Appearance
4.3.1 Physical State
Solid
Solid
4.3.2 Color
Silvery Gray
Silvery Gold
4.3.3 Luster
Metallic
NA
4.4 Hardness
4.4.1 Mohs Hardness
7.000.20
Tin
0.2 8.5
4.4.2 Brinell Hardness
1,320.00 MPa0.14 MPa
Palladium
0.14 3490
4.4.3 Vickers Hardness
1,350.00 MPaNA
Palladium
121 3430
4.5 Speed of Sound
4,700.00 m/sNA
Thallium
818 16200
4.6 Optical Properties
4.6.1 Refractive Index
NANA
Mercury
1.000933 1.7229
4.6.2 Reflectivity
NANA
Molybdenum
58 97
4.7 Allotropes
4.7.1 α Allotropes
Not Available
Not Available
4.7.2 β Allotropes
Not Available
Not Available
4.7.3 γ Allotropes
Not Available
Not Available
5 Chemical
5.1 Chemical Formula
Re
Cs
5.2 Isotopes
5.2.1 Known Isotopes
3336
Tennessine
0 38
5.3 Electronegativity
5.3.1 Pauling Electronegativity
1.900.79
Francium
0.7 2.54
5.3.2 Sanderson Electronegativity
NA0.22
Sodium
0.22 2.56
5.3.3 Allred Rochow Electronegativity
1.460.86
Potassium
0.86 1.82
5.3.4 Mulliken-Jaffe Electronegativity
NA0.62
Sodium
0.62 2.48
5.3.5 Allen Electronegativity
1.600.66
Francium
0.659 2.7
5.4 Electropositivity
5.4.1 Pauling Electropositivity
2.103.21
Gold
1.46 3.3
5.5 Ionization Energies
5.5.1 1st Energy Level
760.00 kJ/mol375.70 kJ/mol
Palladium
375.7 26130
5.5.2 2nd Energy Level
1,260.00 kJ/mol2,234.30 kJ/mol
Ruthenium
710.2162 28750
5.5.3 3rd Energy Level
2,510.00 kJ/mol3,400.00 kJ/mol
Osmium
1600 34230
5.5.4 4th Energy Level
3,640.00 kJ/molNA
Thorium
2780 37066
5.5.5 5th Energy Level
NANA
Dubnium
4305.2 97510
5.5.6 6th Energy Level
NANA
Seaborgium
5715.8 105800
5.5.7 7th Energy level
NANA
Bohrium
7226.8 114300
5.5.8 8th Energy Level
NANA
Hassium
8857.4 125300
5.5.9 9th Energy Level
NANA
Yttrium
14110 134700
5.5.10 10th Energy Level
NANA
Strontium
17100 144300
5.5.11 11th Energy Level
NANA
Yttrium
19900 169988
5.5.12 12th Energy Level
NANA
Molybdenum
22219 189368
5.5.13 13th Energy Level
NANA
Molybdenum
26930 76015
5.5.14 14th Energy Level
NANA
Molybdenum
29196 86450
5.5.15 15th Energy Level
NANA
Manganese
41987 97510
5.5.16 16th Energy Level
NANA
Iron
47206 109480
5.5.17 17th Energy Level
NANA
Cobalt
52737 122200
5.5.18 18th Energy Level
NANA
Nickel
58570 134810
5.5.19 19th Energy Level
NANA
Copper
64702 148700
5.5.20 20th Energy Level
NANA
Molybdenum
80400 171200
5.5.21 21st Energy Level
NANA
Molybdenum
87000 179100
5.5.22 22nd Energy Level
NANA
Molybdenum
93400 184900
5.5.23 23rd Energy Level
NANA
Molybdenum
98420 198800
5.5.24 24th Energy Level
NANA
Molybdenum
104400 195200
5.5.25 25th Energy Level
NANA
Molybdenum
121900 121900
5.5.26 26th Energy Level
NANA
Molybdenum
127700 127700
5.5.27 27th Energy Level
NANA
Molybdenum
133800 133800
5.5.28 28th Energy Level
NANA
Molybdenum
139800 139800
5.5.29 29th Energy Level
NANA
Molybdenum
148100 148100
5.5.30 30th Energy Level
NANA
Molybdenum
154500 154500
5.6 Electrochemical Equivalent
0.99 g/amp-hr4.96 g/amp-hr
Beryllium
0.16812 8.3209
5.7 Electron Work Function
4.96 eV2.14 eV
Potassium
2.14 5.65
5.8 Other Chemical Properties
Corrosion, Ionization, Radioactive Isotopes, Solubility
Chemical Stability, Corrosion, Ionization, Radioactive Isotopes, Solubility
6 Atomic
6.1 Atomic Number
7555
Lithium
3 117
6.2 Electron Configuration
[Xe] 4f14 5d5 6s2
[Xe] 6s1
6.3 Crystal Structure
Hexagonal Close Packed (HCP)
Body Centered Cubic (BCC)
6.3.1 Crystal Lattice
6.4 Atom
6.4.1 Number of Protons
7555
Lithium
3 117
6.4.2 Number of Neutrons
11178
Lithium
4 184
6.4.3 Number of Electrons
7555
Lithium
3 117
6.5 Radius of an Atom
6.5.1 Atomic Radius
137.00 pm265.00 pm
Beryllium
112 265
6.5.2 Covalent Radius
151.00 pm244.00 pm
Beryllium
96 260
6.5.3 Van der Waals Radius
200.00 pm343.00 pm
Zinc
139 348
6.6 Atomic Weight
186.21 amu132.91 amu
Lithium
6.94 294
6.7 Atomic Volume
8.85 cm3/mol71.07 cm3/mol
Manganese
1.39 71.07
6.8 Adjacent Atomic Numbers
6.8.1 Previous Element
6.8.2 Next Element
6.9 Valence Electron Potential
180.00 (-eV)8.62 (-eV)
Francium
8 392.42
6.10 Lattice Constant
276.10 pm614.10 pm
Beryllium
228.58 891.25
6.11 Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
6.12 Lattice C/A Ratio
1.62NA
Beryllium
1.567 1.886
7 Mechanical
7.1 Density
7.1.1 Density At Room Temperature
21.02 g/cm31.93 g/cm3
Lithium
0.534 40.7
7.1.2 Density When Liquid (at m.p.)
18.90 g/cm31.84 g/cm3
Lithium
0.512 20
7.2 Tensile Strength
1,070.00 MPaNA
Indium
2.5 11000
7.3 Viscosity
NANA
Mercury
0.001526 0.001526
7.4 Vapor Pressure
7.4.1 Vapor Pressure at 1000 K
NANA
Cerium
2.47E-11 121
7.4.2 Vapor Pressure at 2000 K
0.00 (Pa)NA
Tungsten
2.62E-10 774
7.5 Elasticity properties
7.5.1 Shear Modulus
178.00 GPaNA
Potassium
1.3 222
7.5.2 Bulk Modulus
370.00 GPa1.60 GPa
Tin
1.6 462
7.5.3 Young's Modulus
463.00 GPa1.70 GPa
Palladium
1.7 528
7.6 Poisson Ratio
0.30NA
Beryllium
0.032 0.47
7.7 Other Mechanical Properties
Ductile, Malleable
Ductile
8 Magnetic
8.1 Magnetic Characteristics
8.1.1 Specific Gravity
21.021.87
Lithium
0.53 4500
8.1.2 Magnetic Ordering
Paramagnetic
Paramagnetic
8.1.3 Permeability
NANA
Bismuth
1.25643E-06 0.0063
8.1.4 Susceptibility
NANA
Bismuth
-0.000166 200000
8.2 Electrical Properties
8.2.1 Electrical Property
Conductor
Semiconductor
8.2.2 Resistivity
193.00 nΩ·m205.00 nΩ·m
Thallium
0.18 961
8.2.3 Electrical Conductivity
0.05 106/cm Ω0.05 106/cm Ω
Plutonium
0.00666 0.63
8.2.4 Electron Affinity
14.50 kJ/mol45.50 kJ/mol
Mercury
0 222.8
9 Thermal
9.1 Specific Heat
0.13 J/(kg K)0.24 J/(kg K)
Americium
0.11 3.6
9.2 Molar Heat Capacity
25.48 J/mol·K32.21 J/mol·K
Beryllium
16.443 62.7
9.3 Thermal Conductivity
48.00 W/m·K35.90 W/m·K
Neptunium
6.3 429
9.4 Critical Temperature
NA1,938.00 K
Ytterbium
26.3 3223
9.5 Thermal Expansion
6.20 µm/(m·K)97.00 µm/(m·K)
Tungsten
4.5 97
9.6 Enthalpy
9.6.1 Enthalpy of Vaporization
707.10 kJ/mol65.90 kJ/mol
Zinc
7.32 799.1
9.6.2 Enthalpy of Fusion
33.05 kJ/mol2.10 kJ/mol
Tin
2.1 35.23
9.6.3 Enthalpy of Atomization
791.00 kJ/mol78.20 kJ/mol
Mercury
61.5 837
9.7 Standard Molar Entropy
36.90 J/mol.K85.20 J/mol.K
Beryllium
9.5 198.1