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Rhenium
Rhenium

Curium
Curium



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Rhenium
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Curium

Rhenium Curium Comparison

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1 Periodic Table
1.1 Symbol
Re
Cm
1.2 Group Number
7NA
Gadolinium Metal
0 17
3.3 Period Number
67
Lithium Metal
2 7
3.7 Block
d block
f block
3.8 Element Family
Transition Metal
Actinide
3.9 CAS Number
74401557440519
Aluminium Metal
7429905 54386242
3.10 Space Group Name
P63/mmc
Not Available
3.11 Space Group Number
194.00NA
Plutonium Metal
11 229
5 Facts
5.1 Interesting Facts
  • Chemical properties of Rhenium are similar to Manganese.
  • Rhenium metal is created while refining Molybdenum.
  • Curium metal does not occur free in nature.
  • Curium metal is a synthetically produced metal.
5.2 Sources
Found in Minerals, Mining, Ores of Minerals
Bombarding Plutonium with Helium Ions
5.3 History
5.3.1 Who Discovered
Masataka Ogawa
Glenn T. Seaborg, Ralph A. James, Albert Ghiorso
5.3.2 Discovery
In 1908
In 1944
5.4 Abundance
5.4.1 Abundance In Universe
2 * 10-8 %NA
Thallium Metal
5E-09 0.11
5.5.2 Abundance In Sun
~0.00000001 %~-9999 %
Beryllium Metal
1E-08 0.1
6.2.2 Abundance In Meteorites
0.00 %NA
Gold Metal
1.7E-07 22
6.3.1 Abundance In Earth's Crust
0.00 %NA
Radium Metal
9.9E-12 8.1
7.4.2 Abundance In Oceans
0.00 %NA
Protactinium Metal
2E-23 1.1
7.5.2 Abundance In Humans
NANA
Radium Metal
1E-13 1.4
8 Uses
8.1 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.
  • Curium metal is used to provide power to electrical equipment for space missions.
8.1.1 Industrial Uses
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
NA
8.1.2 Medical Uses
NA
NA
8.1.3 Other Uses
Alloys
Research Purposes
8.2 Biological Properties
8.2.1 Toxicity
Low Toxic
Unknown
8.2.2 Present in Human Body
8.2.3 In Blood
NA0.00 Blood/mg dm-3
Plutonium Metal
0 1970
8.2.5 In Bone
NA0.00 p.p.m.
Plutonium Metal
0 170000
9 Physical
9.1 Melting Point
3,180.00 °C1,340.00 °C
Francium Metal
27 3410
9.3 Boiling Point
5,627.00 °C3,110.00 °C
Flerovium Metal
147 5660
10.3 Appearance
10.3.1 Physical State
Solid
Solid
10.3.2 Color
Silvery Gray
Silver
10.3.3 Luster
Metallic
Metallic
10.5 Hardness
10.5.1 Mohs Hardness
7.00NA
Cesium Metal
0.2 8.5
10.7.2 Brinell Hardness
1,320.00 MPaNA
Cesium Metal
0.14 3490
10.7.5 Vickers Hardness
1,350.00 MPaNA
Palladium Metal
121 3430
10.8 Speed of Sound
4,700.00 m/sNA
Thallium Metal
818 16200
10.9 Optical Properties
10.9.1 Refractive Index
NANA
Mercury Metal
1.000933 1.7229
10.10.2 Reflectivity
NANA
Molybdenum Metal
58 97
10.11 Allotropes
10.11.1 α Allotropes
Not Available
Not Available
10.11.2 β Allotropes
Not Available
Not Available
10.12.2 γ Allotropes
Not Available
Not Available
11 Chemical
11.1 Chemical Formula
Re
Cm
11.2 Isotopes
11.2.1 Known Isotopes
3315
Tennessine Metal
0 38
11.3 Electronegativity
11.3.1 Pauling Electronegativity
1.901.30
Francium Metal
0.7 2.54
11.3.4 Sanderson Electronegativity
NANA
Cesium Metal
0.22 2.56
11.3.8 Allred Rochow Electronegativity
1.461.20
Cesium Metal
0.86 1.82
11.3.10 Mulliken-Jaffe Electronegativity
NANA
Cesium Metal
0.62 2.48
11.3.13 Allen Electronegativity
1.60NA
Cesium Metal
0.659 2.7
11.4 Electropositivity
11.4.1 Pauling Electropositivity
2.102.70
Gold Metal
1.46 3.3
11.5 Ionization Energies
11.5.1 1st Energy Level
760.00 kJ/mol581.00 kJ/mol
Cesium Metal
375.7 26130
11.5.5 2nd Energy Level
1,260.00 kJ/mol1,196.00 kJ/mol
Ruthenium Metal
710.2162 28750
11.5.8 3rd Energy Level
2,510.00 kJ/mol2,026.00 kJ/mol
Osmium Metal
1600 34230
11.5.11 4th Energy Level
3,640.00 kJ/mol3,550.00 kJ/mol
Thorium Metal
2780 37066
11.5.15 5th Energy Level
NANA
Dubnium Metal
4305.2 97510
11.5.17 6th Energy Level
NANA
Seaborgium Metal
5715.8 105800
11.5.21 7th Energy level
NANA
Bohrium Metal
7226.8 114300
11.5.24 8th Energy Level
NANA
Hassium Metal
8857.4 125300
11.5.27 9th Energy Level
NANA
Yttrium Metal
14110 134700
11.5.29 10th Energy Level
NANA
Strontium Metal
17100 144300
11.5.33 11th Energy Level
NANA
Yttrium Metal
19900 169988
11.5.36 12th Energy Level
NANA
Molybdenum Metal
22219 189368
11.5.40 13th Energy Level
NANA
Molybdenum Metal
26930 76015
11.5.44 14th Energy Level
NANA
Molybdenum Metal
29196 86450
11.5.47 15th Energy Level
NANA
Manganese Metal
41987 97510
11.6.1 16th Energy Level
NANA
Iron Metal
47206 109480
11.6.3 17th Energy Level
NANA
Cobalt Metal
52737 122200
11.6.7 18th Energy Level
NANA
Nickel Metal
58570 134810
11.6.9 19th Energy Level
NANA
Copper Metal
64702 148700
11.7.1 20th Energy Level
NANA
Molybdenum Metal
80400 171200
11.7.2 21st Energy Level
NANA
Molybdenum Metal
87000 179100
11.8.1 22nd Energy Level
NANA
Molybdenum Metal
93400 184900
12.1.1 23rd Energy Level
NANA
Molybdenum Metal
98420 198800
12.2.1 24th Energy Level
NANA
Molybdenum Metal
104400 195200
12.4.2 25th Energy Level
NANA
Molybdenum Metal
121900 121900
12.4.4 26th Energy Level
NANA
Molybdenum Metal
127700 127700
12.4.5 27th Energy Level
NANA
Molybdenum Metal
133800 133800
12.4.7 28th Energy Level
NANA
Molybdenum Metal
139800 139800
12.5.2 29th Energy Level
NANA
Molybdenum Metal
148100 148100
12.5.4 30th Energy Level
NANA
Molybdenum Metal
154500 154500
12.6 Electrochemical Equivalent
0.99 g/amp-hr3.07 g/amp-hr
Beryllium Metal
0.16812 8.3209
12.8 Electron Work Function
4.96 eVNA
Cesium Metal
2.14 5.65
12.10 Other Chemical Properties
Corrosion, Ionization, Radioactive Isotopes, Solubility
Ionization, Radioactive Isotopes
13 Atomic
13.1 Atomic Number
7596
Lithium Metal
3 117
13.4 Electron Configuration
[Xe] 4f14 5d5 6s2
[Rn] 5f7 6d1 7s2
13.5 Crystal Structure
Hexagonal Close Packed (HCP)
Double Hexagonal Close Packed (DHCP)
13.5.1 Crystal Lattice
13.6 Atom
13.6.1 Number of Protons
7596
Lithium Metal
3 117
13.7.1 Number of Neutrons
111151
Lithium Metal
4 184
13.9.1 Number of Electrons
7596
Lithium Metal
3 117
14.3 Radius of an Atom
14.3.1 Atomic Radius
137.00 pm174.00 pm
Beryllium Metal
112 265
15.1.1 Covalent Radius
151.00 pm169.00 pm
Beryllium Metal
96 260
15.2.1 Van der Waals Radius
200.00 pm200.00 pm
Zinc Metal
139 348
15.7 Atomic Weight
186.21 amu247.00 amu
Lithium Metal
6.94 294
15.8 Atomic Volume
8.85 cm3/mol18.28 cm3/mol
Manganese Metal
1.39 71.07
15.10 Adjacent Atomic Numbers
15.10.1 Previous Element
15.10.2 Next Element
15.11 Valence Electron Potential
180.00 (-eV)44.50 (-eV)
Francium Metal
8 392.42
15.12 Lattice Constant
276.10 pmNA
Beryllium Metal
228.58 891.25
15.14 Lattice Angles
π/2, π/2, 2 π/3
NA
15.15 Lattice C/A Ratio
1.62NA
Beryllium Metal
1.567 1.886
16 Mechanical
16.1 Density
16.1.1 Density At Room Temperature
21.02 g/cm313.51 g/cm3
Lithium Metal
0.534 40.7
16.2.1 Density When Liquid (at m.p.)
18.90 g/cm313.85 g/cm3
Lithium Metal
0.512 20
17.2 Tensile Strength
1,070.00 MPaNA
Indium Metal
2.5 11000
17.4 Viscosity
NANA
Mercury Metal
0.001526 0.001526
17.7 Vapor Pressure
17.7.1 Vapor Pressure at 1000 K
NANA
Cerium Metal
2.47E-11 121
17.9.1 Vapor Pressure at 2000 K
0.00 (Pa)NA
Tungsten Metal
2.62E-10 774
17.10 Elasticity properties
17.10.1 Shear Modulus
178.00 GPaNA
Potassium Metal
1.3 222
18.1.2 Bulk Modulus
370.00 GPaNA
Cesium Metal
1.6 462
18.1.4 Young's Modulus
463.00 GPaNA
Cesium Metal
1.7 528
18.2 Poisson Ratio
0.30NA
Beryllium Metal
0.032 0.47
19.3 Other Mechanical Properties
Ductile, Malleable
Unknown
20 Magnetic
20.2 Magnetic Characteristics
20.2.1 Specific Gravity
21.0213.51
Lithium Metal
0.53 4500
20.3.1 Magnetic Ordering
Paramagnetic
Antiferromagnetic
20.3.2 Permeability
NANA
Bismuth Metal
1.25643E-06 0.0063
20.4.1 Susceptibility
NANA
Bismuth Metal
-0.000166 200000
20.6 Electrical Properties
20.6.1 Electrical Property
Conductor
Unknown
20.6.2 Resistivity
193.00 nΩ·m1.25 nΩ·m
Thallium Metal
0.18 961
20.7.2 Electrical Conductivity
0.05 106/cm ΩNA
Plutonium Metal
0.00666 0.63
20.10.2 Electron Affinity
14.50 kJ/molNA
Mercury Metal
0 222.8
21 Thermal
21.1 Specific Heat
0.13 J/(kg K)NA
Americium Metal
0.11 3.6
1.2 Molar Heat Capacity
25.48 J/mol·KNA
Beryllium Metal
16.443 62.7
1.5 Thermal Conductivity
48.00 W/m·KNA
Neptunium Metal
6.3 429
2.3 Critical Temperature
NANA
Ytterbium Metal
26.3 3223
2.4 Thermal Expansion
6.20 µm/(m·K)NA
Tungsten Metal
4.5 97
2.6 Enthalpy
2.6.1 Enthalpy of Vaporization
707.10 kJ/molNA
Zinc Metal
7.32 799.1
2.6.4 Enthalpy of Fusion
33.05 kJ/mol15.00 kJ/mol
Cesium Metal
2.1 35.23
2.7.3 Enthalpy of Atomization
791.00 kJ/molNA
Mercury Metal
61.5 837
3.2 Standard Molar Entropy
36.90 J/mol.KNA
Beryllium Metal
9.5 198.1