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Magnesium
Magnesium

Rhodium
Rhodium



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Magnesium
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Rhodium

Magnesium Rhodium Comparison

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1 Periodic Table
1.1 Symbol
Mg
Rh
1.2 Group Number
Tennessine Metal
2
Rank: 16 (Overall)
9
Rank: 9 (Overall)
Gadolinium Metal
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1.3 Period Number
Uranium Metal
3
Rank: 5 (Overall)
5
Rank: 3 (Overall)
Lithium Metal
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1.4 Block
s block
d block
1.5 Element Family
Alkaline Earth
Transition Metal
1.6 CAS Number
Roentgenium Met..
7439954
Rank: 83 (Overall)
7440166
Rank: 63 (Overall)
Aluminium Metal
1.7 Space Group Name
P63/mmc
Fm_ 3m
1.8 Space Group Number
Sodium Metal
194.00
Rank: 5 (Overall)
225.00
Rank: 2 (Overall)
Plutonium Metal
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2 Facts
2.1 Interesting Facts
  • Magnesium ions are present in every chlorophyll of every green plant .
  • Controlling Magnesium fire by pouring water on it will result in explosions.
  • Rhodium is the rarest element out of all non-radioactive metals on the earth .
  • Rhodium is one of the most durable and hard metal, which also have high reflectance.
2.2 Sources
By Electrolysis Process, In Ocean, Mining
Earth's crust, Found As a By-product, Found in Minerals, Mining
2.3 History
2.3.1 Who Discovered
Joseph Black
William Hyde Wollaston
2.3.2 Discovery
In 1755
In 1804
2.4 Abundance
2.4.1 Abundance In Universe
Iron Metal
6 * 10-2 %
Rank: 2 (Overall)
6 * 10-8 %
Rank: 26 (Overall)
Thallium Metal
2.4.2 Abundance In Sun
Iron Metal
~0.07 %
Rank: 2 (Overall)
~0.0000002 %
Rank: 25 (Overall)
Beryllium Metal
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2.4.3 Abundance In Meteorites
Iron Metal
12.00 %
Rank: 2 (Overall)
0.00 %
Rank: 36 (Overall)
Gold Metal
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2.4.4 Abundance In Earth's Crust
Aluminium Metal
2.90 %
Rank: 4 (Overall)
0.00 %
Rank: 55 (Overall)
Radium Metal
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2.4.5 Abundance In Oceans
Sodium Metal
0.13 %
Rank: 2 (Overall)
Not Available
Rank: N/A (Overall)
Protactinium Metal
2.4.6 Abundance In Humans
Calcium Metal
0.03 %
Rank: 4 (Overall)
Not Available
Rank: N/A (Overall)
Radium Metal
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3 Uses
3.1 Uses & Benefits
  • Magnesium aluminum alloy improves the mechanical strength and welding characteristics and hence it is used in aeroplane and car manufacturing.
  • It is also used to remove sulfur from the molten iron and steel.
  • Rhodium metal is mainly used in catalytic converters for cars as it reduces nitrogen oxides in exhaust gases.
  • It is used as an industrial catalyst for nitric acid, acetic acid, hydrogenation reaction, etc.
3.1.1 Industrial Uses
Aerospace Industry, Ammunition Industry, Automobile Industry, Chemical Industry, Pharmaceutical Industry
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry
3.1.2 Medical Uses
NA
NA
3.1.3 Other Uses
Surgical Instruments Manufacturing
Alloys
3.2 Biological Properties
3.2.1 Toxicity
Non Toxic
NA
3.2.2 Present in Human Body
83% Alkaline Earth Metals Metals have it !
60% Transition Metals Metals have it !
3.2.3 In Blood
Sodium Metal
37.80 Blood/mg dm-3
Rank: 5 (Overall)
Not Available
Rank: N/A (Overall)
Plutonium Metal
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3.2.4 In Bone
Calcium Metal
1,800.00 p.p.m.
Rank: 4 (Overall)
Not Available
Rank: N/A (Overall)
Plutonium Metal
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4 Physical
4.1 Melting Point
Tungsten Metal
650.00 °C
Rank: 61 (Overall)
1,966.00 °C
Rank: 12 (Overall)
Francium Metal
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4.2 Boiling Point
Tungsten Metal
1,107.00 °C
Rank: 66 (Overall)
3,727.00 °C
Rank: 17 (Overall)
Flerovium Metal
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4.3 Appearance
4.3.1 Physical State
Solid
Solid
4.3.2 Color
Gray
Silvery White
4.3.3 Luster
NA
Metallic
4.4 Hardness
4.4.1 Mohs Hardness
Chromium Metal
2.50
Rank: 14 (Overall)
6.00
Rank: 6 (Overall)
Cesium Metal
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4.4.2 Brinell Hardness
Osmium Metal
260.00 MPa
Rank: 36 (Overall)
980.00 MPa
Rank: 9 (Overall)
Cesium Metal
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4.4.3 Vickers Hardness
Tungsten Metal
Not Available
Rank: N/A (Overall)
1,100.00 MPa
Rank: 9 (Overall)
Palladium Metal
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4.5 Speed of Sound
Technetium Metal
4,940.00 m/s
Rank: 11 (Overall)
4,700.00 m/s
Rank: 15 (Overall)
Thallium Metal
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4.6 Optical Properties
4.6.1 Refractive Index
Palladium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Mercury Metal
4.6.2 Reflectivity
Silver Metal
74.00 %
Rank: 7 (Overall)
84.00 %
Rank: 4 (Overall)
Molybdenum Metal
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4.7 Allotropes
No Alkaline Earth Metals Metals has it !
6% Transition Metals Metals have it !
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
Mg
Rh
5.2 Isotopes
5.2.1 Known Isotopes
Palladium Metal
15
Rank: 24 (Overall)
16
Rank: 23 (Overall)
Tennessine Metal
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5.3 Electronegativity
5.3.1 Pauling Electronegativity
Gold Metal
1.31
Rank: 31 (Overall)
2.28
Rank: 3 (Overall)
Francium Metal
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5.3.2 Sanderson Electronegativity
Cobalt Metal
1.32
Rank: 18 (Overall)
Not Available
Rank: N/A (Overall)
Cesium Metal
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5.3.3 Allred Rochow Electronegativity
Gallium Metal
1.23
Rank: 25 (Overall)
1.45
Rank: 16 (Overall)
Cesium Metal
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5.3.4 Mulliken-Jaffe Electronegativity
Polonium Metal
1.37
Rank: 16 (Overall)
Not Available
Rank: N/A (Overall)
Cesium Metal
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5.3.5 Allen Electronegativity
Berkelium Metal
1.29
Rank: 35 (Overall)
1.56
Rank: 24 (Overall)
Cesium Metal
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5.4 Electropositivity
5.4.1 Pauling Electropositivity
Francium Metal
2.69
Rank: 23 (Overall)
1.72
Rank: 50 (Overall)
Gold Metal
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5.5 Ionization Energies
5.5.1 1st Energy Level
Chromium Metal
737.70 kJ/mol
Rank: 24 (Overall)
719.70 kJ/mol
Rank: 29 (Overall)
Cesium Metal
5.5.2 2nd Energy Level
Chromium Metal
1,450.70 kJ/mol
Rank: 42 (Overall)
1,740.00 kJ/mol
Rank: 26 (Overall)
Ruthenium Metal
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5.5.3 3rd Energy Level
Chromium Metal
7,732.70 kJ/mol
Rank: 5 (Overall)
2,997.00 kJ/mol
Rank: 27 (Overall)
Osmium Metal
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5.5.4 4th Energy Level
Chromium Metal
10,542.50 kJ/mol
Rank: 4 (Overall)
Not Available
Rank: N/A (Overall)
Thorium Metal
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5.5.5 5th Energy Level
Chromium Metal
13,630.00 kJ/mol
Rank: 3 (Overall)
Not Available
Rank: N/A (Overall)
Dubnium Metal
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5.5.6 6th Energy Level
Chromium Metal
18,020.00 kJ/mol
Rank: 3 (Overall)
Not Available
Rank: N/A (Overall)
Seaborgium Metal
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5.5.7 7th Energy level
Chromium Metal
21,711.00 kJ/mol
Rank: 3 (Overall)
Not Available
Rank: N/A (Overall)
Bohrium Metal
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5.5.8 8th Energy Level
Chromium Metal
25,661.00 kJ/mol
Rank: 3 (Overall)
Not Available
Rank: N/A (Overall)
Hassium Metal
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5.5.9 9th Energy Level
Chromium Metal
31,653.00 kJ/mol
Rank: 3 (Overall)
Not Available
Rank: N/A (Overall)
Yttrium Metal
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5.5.10 10th Energy Level
Chromium Metal
35,458.00 kJ/mol
Rank: 5 (Overall)
Not Available
Rank: N/A (Overall)
Strontium Metal
5.5.11 11th Energy Level
Magnesium Metal
169,988.00 kJ/mol
Rank: 1 (Overall)
Not Available
Rank: N/A (Overall)
Yttrium Metal
5.5.12 12th Energy Level
Magnesium Metal
189,368.00 kJ/mol
Rank: 1 (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.5.13 13th Energy Level
Titanium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.5.14 14th Energy Level
Vanadium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.5.15 15th Energy Level
Chromium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Manganese Metal
5.5.16 16th Energy Level
Manganese Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Iron Metal
5.5.17 17th Energy Level
Iron Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Cobalt Metal
5.5.18 18th Energy Level
Cobalt Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Nickel Metal
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5.5.19 19th Energy Level
Nickel Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Copper Metal
5.5.20 20th Energy Level
Zinc Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.5.21 21st Energy Level
Zinc Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.5.22 22nd Energy Level
Copper Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.5.23 23rd Energy Level
Copper Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.5.24 24th Energy Level
Iron Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
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5.5.25 25th Energy Level
Molybdenum Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.5.26 26th Energy Level
Molybdenum Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.5.27 27th Energy Level
Molybdenum Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.5.28 28th Energy Level
Molybdenum Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.5.29 29th Energy Level
Molybdenum Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.5.30 30th Energy Level
Molybdenum Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.6 Electrochemical Equivalent
Francium Metal
0.45 g/amp-hr
Rank: 69 (Overall)
1.28 g/amp-hr
Rank: 50 (Overall)
Beryllium Metal
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5.7 Electron Work Function
Platinum Metal
3.66 eV
Rank: 29 (Overall)
4.98 eV
Rank: 6 (Overall)
Cesium Metal
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5.8 Other Chemical Properties
Corrosion, Highly Inflammable, Ionization, Solubility
Anti Corrosion, Ionization, Radioactive Isotopes
6 Atomic
6.1 Atomic Number
Tennessine Metal
12
Rank: 89 (Overall)
45
Rank: 67 (Overall)
Lithium Metal
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6.2 Electron Configuration
[Ne] 3s2
[Kr] 4d8 5s1
6.3 Crystal Structure
Hexagonal Close Packed (HCP)
Face Centered Cubic (FCC)
6.3.1 Crystal Lattice
6.4 Atom
6.4.1 Number of Protons
Tennessine Metal
12
Rank: 88 (Overall)
45
Rank: 66 (Overall)
Lithium Metal
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6.4.2 Number of Neutrons
Flerovium Metal
12
Rank: 66 (Overall)
58
Rank: 49 (Overall)
Lithium Metal
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6.4.3 Number of Electrons
Tennessine Metal
12
Rank: 88 (Overall)
45
Rank: 66 (Overall)
Lithium Metal
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6.5 Radius of an Atom
6.5.1 Atomic Radius
Cesium Metal
160.00 pm
Rank: 27 (Overall)
134.00 pm
Rank: 43 (Overall)
Beryllium Metal
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6.5.2 Covalent Radius
Francium Metal
141.00 pm
Rank: 43 (Overall)
142.00 pm
Rank: 42 (Overall)
Beryllium Metal
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6.5.3 Van der Waals Radius
Francium Metal
173.00 pm
Rank: 37 (Overall)
200.00 pm
Rank: 28 (Overall)
Zinc Metal
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6.6 Atomic Weight
Tennessine Metal
24.31 amu
Rank: 83 (Overall)
102.91 amu
Rank: 61 (Overall)
Lithium Metal
6.7 Atomic Volume
Cesium Metal
13.97 cm3/mol
Rank: 37 (Overall)
8.30 cm3/mol
Rank: 59 (Overall)
Manganese Metal
6.8 Adjacent Atomic Numbers
6.8.1 Previous Element
6.8.2 Next Element
6.9 Valence Electron Potential
Platinum Metal
40.00 (-eV)
Rank: 47 (Overall)
64.00 (-eV)
Rank: 22 (Overall)
Francium Metal
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6.10 Lattice Constant
Manganese Metal
320.94 pm
Rank: 54 (Overall)
380.34 pm
Rank: 27 (Overall)
Beryllium Metal
6.11 Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
6.12 Lattice C/A Ratio
Cadmium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Beryllium Metal
7 Mechanical
7.1 Density
7.1.1 Density At Room Temperature
Hassium Metal
1.74 g/cm3
Rank: 79 (Overall)
12.41 g/cm3
Rank: 28 (Overall)
Lithium Metal
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7.1.2 Density When Liquid (at m.p.)
Osmium Metal
1.58 g/cm3
Rank: 55 (Overall)
10.70 g/cm3
Rank: 14 (Overall)
Lithium Metal
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7.2 Tensile Strength
Iron Metal
Not Available
Rank: N/A (Overall)
951.00 MPa
Rank: 5 (Overall)
Indium Metal
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7.3 Viscosity
Mercury Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Mercury Metal
7.4 Vapor Pressure
7.4.1 Vapor Pressure at 1000 K
Strontium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Cerium Metal
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7.4.2 Vapor Pressure at 2000 K
Chromium Metal
Not Available
Rank: N/A (Overall)
0.02 (Pa)
Rank: 19 (Overall)
Tungsten Metal
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7.5 Elasticity properties
7.5.1 Shear Modulus
Osmium Metal
17.00 GPa
Rank: 37 (Overall)
150.00 GPa
Rank: 6 (Overall)
Potassium Metal
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7.5.2 Bulk Modulus
Osmium Metal
45.00 GPa
Rank: 25 (Overall)
275.00 GPa
Rank: 5 (Overall)
Cesium Metal
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7.5.3 Young's Modulus
Iridium Metal
45.00 GPa
Rank: 39 (Overall)
380.00 GPa
Rank: 5 (Overall)
Cesium Metal
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7.6 Poisson Ratio
Gallium Metal
0.29
Rank: 15 (Overall)
0.26
Rank: 22 (Overall)
Beryllium Metal
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7.7 Other Mechanical Properties
NA
Malleable
8 Magnetic
8.1 Magnetic Characteristics
8.1.1 Specific Gravity
Cobalt Metal
1.74
Rank: 66 (Overall)
12.41
Rank: 20 (Overall)
Lithium Metal
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8.1.2 Magnetic Ordering
Paramagnetic
Paramagnetic
8.1.3 Permeability
Iron Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Bismuth Metal
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8.1.4 Susceptibility
Iron Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Bismuth Metal
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8.2 Electrical Properties
8.2.1 Electrical Property
Conductor
Conductor
8.2.2 Resistivity
Mercury Metal
43.90 nΩ·m
Rank: 45 (Overall)
43.30 nΩ·m
Rank: 46 (Overall)
Thallium Metal
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8.2.3 Electrical Conductivity
Silver Metal
0.23 106/cm Ω
Rank: 7 (Overall)
0.21 106/cm Ω
Rank: 8 (Overall)
Plutonium Metal
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8.2.4 Electron Affinity
Gold Metal
0.00 kJ/mol
Rank: 40 (Overall)
109.70 kJ/mol
Rank: 7 (Overall)
Mercury Metal
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9 Thermal
9.1 Specific Heat
Lithium Metal
1.02 J/(kg K)
Rank: 4 (Overall)
0.24 J/(kg K)
Rank: 22 (Overall)
Americium Metal
9.2 Molar Heat Capacity
Americium Metal
24.87 J/mol·K
Rank: 47 (Overall)
24.98 J/mol·K
Rank: 45 (Overall)
Beryllium Metal
9.3 Thermal Conductivity
Silver Metal
156.00 W/m·K
Rank: 8 (Overall)
150.00 W/m·K
Rank: 9 (Overall)
Neptunium Metal
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9.4 Critical Temperature
Lithium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Ytterbium Metal
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9.5 Thermal Expansion
Cesium Metal
24.80 µm/(m·K)
Rank: 15 (Overall)
8.20 µm/(m·K)
Rank: 47 (Overall)
Tungsten Metal
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9.6 Enthalpy
9.6.1 Enthalpy of Vaporization
Tungsten Metal
128.70 kJ/mol
Rank: 52 (Overall)
495.40 kJ/mol
Rank: 12 (Overall)
Zinc Metal
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9.6.2 Enthalpy of Fusion
Tungsten Metal
8.95 kJ/mol
Rank: 39 (Overall)
21.76 kJ/mol
Rank: 10 (Overall)
Cesium Metal
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9.6.3 Enthalpy of Atomization
Tungsten Metal
148.50 kJ/mol
Rank: 53 (Overall)
556.50 kJ/mol
Rank: 12 (Overall)
Mercury Metal
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9.7 Standard Molar Entropy
Protactinium Me..
32.70 J/mol.K
Rank: 46 (Overall)
31.50 J/mol.K
Rank: 49 (Overall)
Beryllium Metal
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