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Chromium
Chromium



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Chromium

Gold Chromium Comparison

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1 Periodic Table
1.1 Symbol
Au
Cr
1.2 Group Number
Tennessine Metal
11
Rank: 7 (Overall)
6
Rank: 12 (Overall)
Gadolinium Metal
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1.5 Period Number
Uranium Metal
6
Rank: 2 (Overall)
4
Rank: 4 (Overall)
Lithium Metal
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1.8 Block
d block
d block
1.9 Element Family
Transition Metal
Transition Metal
1.10 CAS Number
Roentgenium Met..
7440575
Rank: 31 (Overall)
7440473
Rank: 39 (Overall)
Aluminium Metal
1.11 Space Group Name
Fm_ 3m
Im_ 3m
1.12 Space Group Number
Sodium Metal
225.00
Rank: 2 (Overall)
229.00
Rank: 1 (Overall)
Plutonium Metal
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3 Facts
3.1 Interesting Facts
  • It is found in copper ores and from the crust of the earth.
  • It is the most malleable and ductile metal.
  • Gold alloys are used in Dentistry as fillings, crowning, clips, etc. It is also used as an artificial limb joints.
  • Chromium is highly reactive, hence it is not found free in nature.
  • Ores of Chromites mineral are the major source of Chromium metal.
  • Almost 90% leather tanning is done with the help of chromium.
3.2 Sources
Earth's crust, Mining, Ores of metals
Found in Minerals, Mining, Ores of metals, Ores of Minerals
3.3 History
3.3.1 Who Discovered
Unknown
Louis Nicolas Vauquelin
3.3.2 Discovery
Before 6000 BCE
In Between 1797 - 1798
3.4 Abundance
3.4.1 Abundance In Universe
Iron Metal
6 * 10-8 %
Rank: 26 (Overall)
1.5 * 10-3 %
Rank: 7 (Overall)
Thallium Metal
3.4.3 Abundance In Sun
Iron Metal
~0.0000001 %
Rank: 26 (Overall)
~0.002 %
Rank: 7 (Overall)
Beryllium Metal
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3.4.4 Abundance In Meteorites
Iron Metal
0.00 %
Rank: 52 (Overall)
0.30 %
Rank: 7 (Overall)
Gold Metal
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3.4.6 Abundance In Earth's Crust
Aluminium Metal
0.00 %
Rank: 50 (Overall)
0.01 %
Rank: 13 (Overall)
Radium Metal
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3.4.8 Abundance In Oceans
Sodium Metal
0.00 %
Rank: 21 (Overall)
0.00 %
Rank: 16 (Overall)
Protactinium Metal
3.4.9 Abundance In Humans
Calcium Metal
0.00 %
Rank: 18 (Overall)
0.00 %
Rank: 16 (Overall)
Radium Metal
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4 Uses
4.1 Uses & Benefits
  • Gold metal is mainly used for Jewelry, bullion, coinage, etc.
  • It is used in the art, decoration, ornaments, etc. It is also used for electroplating process.
  • It is used to harden the steel and produces a stainless steel and other various alloys.
  • It is also used to give proper finish to polished mirrors. Its chromium plates are used in bathroom fittings.
4.1.1 Industrial Uses
Chemical Industry, Clothing Industry, Electrical Industry, Electronic Industry
Automobile Industry, Chemical Industry
4.1.2 Medical Uses
Dentistry, Pharmaceutical Industry
NA
4.1.3 Other Uses
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues
Alloys
4.2 Biological Properties
4.2.1 Toxicity
Non Toxic
Highly Toxic
4.2.2 Present in Human Body
60% Transition Metals Metals have it !
60% Transition Metals Metals have it !
4.2.3 In Blood
Sodium Metal
0.00 Blood/mg dm-3
Rank: 35 (Overall)
0.11 Blood/mg dm-3
Rank: 12 (Overall)
Plutonium Metal
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4.2.5 In Bone
Calcium Metal
0.02 p.p.m.
Rank: 30 (Overall)
0.33 p.p.m.
Rank: 21 (Overall)
Plutonium Metal
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6 Physical
6.1 Melting Point
Tungsten Metal
1,064.43 °C
Rank: 42 (Overall)
1,857.00 °C
Rank: 14 (Overall)
Francium Metal
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6.3 Boiling Point
Tungsten Metal
2,807.00 °C
Rank: 36 (Overall)
2,672.00 °C
Rank: 39 (Overall)
Flerovium Metal
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6.4 Appearance
6.4.1 Physical State
Solid
Solid
6.4.2 Color
Gold
Silver
6.4.3 Luster
Metallic
Metallic
6.5 Hardness
6.5.1 Mohs Hardness
Chromium Metal
2.50
Rank: 14 (Overall)
8.50
Rank: 1 (Overall)
Cesium Metal
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6.5.2 Brinell Hardness
Osmium Metal
194.00 MPa
Rank: 42 (Overall)
687.00 MPa
Rank: 16 (Overall)
Cesium Metal
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7.1.1 Vickers Hardness
Tungsten Metal
216.00 MPa
Rank: 31 (Overall)
1,060.00 MPa
Rank: 10 (Overall)
Palladium Metal
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7.3 Speed of Sound
Technetium Metal
2,030.00 m/s
Rank: 44 (Overall)
5,940.00 m/s
Rank: 5 (Overall)
Thallium Metal
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7.4 Optical Properties
7.4.1 Refractive Index
Palladium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Mercury Metal
7.6.2 Reflectivity
Silver Metal
95.00 %
Rank: 2 (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
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7.7 Allotropes
6% Transition Metals Metals have it !
6% Transition Metals Metals have it !
7.7.1 α Allotropes
Not Available
Not Available
7.7.2 β Allotropes
Not Available
Not Available
7.7.3 γ Allotropes
Not Available
Not Available
8 Chemical
8.1 Chemical Formula
Au
Cr
8.2 Isotopes
8.2.1 Known Isotopes
Palladium Metal
36
Rank: 3 (Overall)
21
Rank: 18 (Overall)
Tennessine Metal
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8.3 Electronegativity
8.3.1 Pauling Electronegativity
Gold Metal
2.54
Rank: 1 (Overall)
1.66
Rank: 18 (Overall)
Francium Metal
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8.4.1 Sanderson Electronegativity
Cobalt Metal
Not Available
Rank: N/A (Overall)
1.66
Rank: 14 (Overall)
Cesium Metal
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8.4.2 Allred Rochow Electronegativity
Gallium Metal
1.42
Rank: 18 (Overall)
1.56
Rank: 10 (Overall)
Cesium Metal
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8.5.2 Mulliken-Jaffe Electronegativity
Polonium Metal
1.87
Rank: 7 (Overall)
Not Available
Rank: N/A (Overall)
Cesium Metal
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8.5.4 Allen Electronegativity
Berkelium Metal
1.92
Rank: 5 (Overall)
1.65
Rank: 19 (Overall)
Cesium Metal
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8.6 Electropositivity
8.6.1 Pauling Electropositivity
Francium Metal
1.46
Rank: 53 (Overall)
2.34
Rank: 36 (Overall)
Gold Metal
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9.3 Ionization Energies
9.3.1 1st Energy Level
Chromium Metal
890.10 kJ/mol
Rank: 8 (Overall)
26,130.00 kJ/mol
Rank: 1 (Overall)
Cesium Metal
9.3.2 2nd Energy Level
Chromium Metal
1,980.00 kJ/mol
Rank: 12 (Overall)
28,750.00 kJ/mol
Rank: 1 (Overall)
Ruthenium Metal
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9.4.2 3rd Energy Level
Chromium Metal
Not Available
Rank: N/A (Overall)
34,230.00 kJ/mol
Rank: 1 (Overall)
Osmium Metal
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9.4.4 4th Energy Level
Chromium Metal
Not Available
Rank: N/A (Overall)
37,066.00 kJ/mol
Rank: 1 (Overall)
Thorium Metal
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9.4.5 5th Energy Level
Chromium Metal
Not Available
Rank: N/A (Overall)
97,510.00 kJ/mol
Rank: 1 (Overall)
Dubnium Metal
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9.4.7 6th Energy Level
Chromium Metal
Not Available
Rank: N/A (Overall)
105,800.00 kJ/mol
Rank: 1 (Overall)
Seaborgium Metal
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9.4.9 7th Energy level
Chromium Metal
Not Available
Rank: N/A (Overall)
114,300.00 kJ/mol
Rank: 1 (Overall)
Bohrium Metal
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9.4.10 8th Energy Level
Chromium Metal
Not Available
Rank: N/A (Overall)
125,300.00 kJ/mol
Rank: 1 (Overall)
Hassium Metal
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9.4.12 9th Energy Level
Chromium Metal
Not Available
Rank: N/A (Overall)
134,700.00 kJ/mol
Rank: 1 (Overall)
Yttrium Metal
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9.5.2 10th Energy Level
Chromium Metal
Not Available
Rank: N/A (Overall)
144,300.00 kJ/mol
Rank: 1 (Overall)
Strontium Metal
9.5.3 11th Energy Level
Magnesium Metal
Not Available
Rank: N/A (Overall)
26,130.00 kJ/mol
Rank: 12 (Overall)
Yttrium Metal
9.6.2 12th Energy Level
Magnesium Metal
Not Available
Rank: N/A (Overall)
28,750.00 kJ/mol
Rank: 13 (Overall)
Molybdenum Metal
9.6.4 13th Energy Level
Titanium Metal
Not Available
Rank: N/A (Overall)
34,230.00 kJ/mol
Rank: 10 (Overall)
Molybdenum Metal
9.6.5 14th Energy Level
Vanadium Metal
Not Available
Rank: N/A (Overall)
37,066.00 kJ/mol
Rank: 12 (Overall)
Molybdenum Metal
9.6.7 15th Energy Level
Chromium Metal
Not Available
Rank: N/A (Overall)
97,510.00 kJ/mol
Rank: 1 (Overall)
Manganese Metal
9.6.8 16th Energy Level
Manganese Metal
Not Available
Rank: N/A (Overall)
105,800.00 kJ/mol
Rank: 2 (Overall)
Iron Metal
9.6.10 17th Energy Level
Iron Metal
Not Available
Rank: N/A (Overall)
114,300.00 kJ/mol
Rank: 3 (Overall)
Cobalt Metal
9.6.12 18th Energy Level
Cobalt Metal
Not Available
Rank: N/A (Overall)
125,300.00 kJ/mol
Rank: 4 (Overall)
Nickel Metal
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9.6.14 19th Energy Level
Nickel Metal
Not Available
Rank: N/A (Overall)
134,700.00 kJ/mol
Rank: 5 (Overall)
Copper Metal
9.6.15 20th Energy Level
Zinc Metal
Not Available
Rank: N/A (Overall)
144,300.00 kJ/mol
Rank: 7 (Overall)
Molybdenum Metal
9.6.17 21st Energy Level
Zinc Metal
Not Available
Rank: N/A (Overall)
157,700.00 kJ/mol
Rank: 7 (Overall)
Molybdenum Metal
9.6.19 22nd Energy Level
Copper Metal
Not Available
Rank: N/A (Overall)
166,090.00 kJ/mol
Rank: 6 (Overall)
Molybdenum Metal
9.6.21 23rd Energy Level
Copper Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: 100 (Overall)
Molybdenum Metal
9.6.23 24th Energy Level
Iron Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: 100 (Overall)
Molybdenum Metal
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9.6.24 25th Energy Level
Molybdenum Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
9.6.26 26th Energy Level
Molybdenum Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
9.6.27 27th Energy Level
Molybdenum Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
9.6.29 28th Energy Level
Molybdenum Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
9.6.30 29th Energy Level
Molybdenum Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
9.6.32 30th Energy Level
Molybdenum Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
9.7 Electrochemical Equivalent
Francium Metal
2.45 g/amp-hr
Rank: 21 (Overall)
0.32 g/amp-hr
Rank: 73 (Overall)
Beryllium Metal
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9.8 Electron Work Function
Platinum Metal
5.10 eV
Rank: 4 (Overall)
4.50 eV
Rank: 14 (Overall)
Cesium Metal
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9.9 Other Chemical Properties
Chemical Stability, Ionization, Solubility
Anti Corrosion, Chemical Stability, Ionization, Radioactive Isotopes, Solubility
10 Atomic
10.1 Atomic Number
Tennessine Metal
79
Rank: 37 (Overall)
24
Rank: 82 (Overall)
Lithium Metal
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10.2 Electron Configuration
[Xe] 4f14 5d10 6s1
[Ar] 3d5 4s1
10.3 Crystal Structure
Face Centered Cubic (FCC)
Body Centered Cubic (BCC)
10.3.1 Crystal Lattice
10.4 Atom
10.4.1 Number of Protons
Tennessine Metal
79
Rank: 37 (Overall)
24
Rank: 81 (Overall)
Lithium Metal
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10.4.3 Number of Neutrons
Flerovium Metal
118
Rank: 23 (Overall)
28
Rank: 61 (Overall)
Lithium Metal
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10.4.5 Number of Electrons
Tennessine Metal
79
Rank: 37 (Overall)
24
Rank: 81 (Overall)
Lithium Metal
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10.5 Radius of an Atom
10.5.1 Atomic Radius
Cesium Metal
151.00 pm
Rank: 32 (Overall)
128.00 pm
Rank: 46 (Overall)
Beryllium Metal
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10.5.3 Covalent Radius
Francium Metal
144.00 pm
Rank: 40 (Overall)
139.00 pm
Rank: 45 (Overall)
Beryllium Metal
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10.5.4 Van der Waals Radius
Francium Metal
166.00 pm
Rank: 39 (Overall)
200.00 pm
Rank: 28 (Overall)
Zinc Metal
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10.6 Atomic Weight
Tennessine Metal
196.97 amu
Rank: 33 (Overall)
52.00 amu
Rank: 76 (Overall)
Lithium Metal
10.7 Atomic Volume
Cesium Metal
10.20 cm3/mol
Rank: 48 (Overall)
7.23 cm3/mol
Rank: 60 (Overall)
Manganese Metal
10.8 Adjacent Atomic Numbers
10.8.1 Previous Element
10.8.2 Next Element
10.9 Valence Electron Potential
Platinum Metal
43.40 (-eV)
Rank: 41 (Overall)
170.00 (-eV)
Rank: 4 (Overall)
Francium Metal
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10.10 Lattice Constant
Manganese Metal
407.82 pm
Rank: 21 (Overall)
291.00 pm
Rank: 62 (Overall)
Beryllium Metal
10.11 Lattice Angles
π/2, π/2, π/2
π/2, π/2, π/2
10.12 Lattice C/A Ratio
Cadmium Metal
1.61
Rank: 4 (Overall)
Not Available
Rank: N/A (Overall)
Beryllium Metal
11 Mechanical
11.1 Density
11.1.1 Density At Room Temperature
Hassium Metal
19.30 g/cm3
Rank: 15 (Overall)
7.19 g/cm3
Rank: 58 (Overall)
Lithium Metal
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11.1.2 Density When Liquid (at m.p.)
Osmium Metal
17.31 g/cm3
Rank: 6 (Overall)
6.30 g/cm3
Rank: 40 (Overall)
Lithium Metal
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11.2 Tensile Strength
Iron Metal
120.00 MPa
Rank: 15 (Overall)
689.00 MPa
Rank: 7 (Overall)
Indium Metal
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11.3 Viscosity
Mercury Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Mercury Metal
11.4 Vapor Pressure
11.4.2 Vapor Pressure at 1000 K
Strontium Metal
0.00 (Pa)
Rank: 23 (Overall)
0.00 (Pa)
Rank: 24 (Overall)
Cerium Metal
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11.4.3 Vapor Pressure at 2000 K
Chromium Metal
67.00 (Pa)
Rank: 4 (Overall)
774.00 (Pa)
Rank: 1 (Overall)
Tungsten Metal
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11.5 Elasticity properties
11.5.1 Shear Modulus
Osmium Metal
27.00 GPa
Rank: 27 (Overall)
115.00 GPa
Rank: 9 (Overall)
Potassium Metal
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11.5.3 Bulk Modulus
Osmium Metal
180.00 GPa
Rank: 9 (Overall)
160.00 GPa
Rank: 11 (Overall)
Cesium Metal
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11.5.5 Young's Modulus
Iridium Metal
79.00 GPa
Rank: 24 (Overall)
279.00 GPa
Rank: 8 (Overall)
Cesium Metal
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11.7 Poisson Ratio
Gallium Metal
0.40
Rank: 4 (Overall)
0.21
Rank: 32 (Overall)
Beryllium Metal
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11.9 Other Mechanical Properties
Ductile, Malleable
NA
12 Magnetic
12.1 Magnetic Characteristics
12.1.1 Specific Gravity
Cobalt Metal
19.32
Rank: 8 (Overall)
7.19
Rank: 46 (Overall)
Lithium Metal
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12.1.2 Magnetic Ordering
Diamagnetic
Antiferromagnetic
12.1.3 Permeability
Iron Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Bismuth Metal
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13.1.1 Susceptibility
Iron Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Bismuth Metal
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13.5 Electrical Properties
13.5.1 Electrical Property
Conductor
NA
13.5.2 Resistivity
Mercury Metal
2.20 nΩ·m
Rank: 53 (Overall)
125.00 nΩ·m
Rank: 27 (Overall)
Thallium Metal
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13.5.3 Electrical Conductivity
Silver Metal
0.45 106/cm Ω
Rank: 3 (Overall)
0.08 106/cm Ω
Rank: 25 (Overall)
Plutonium Metal
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13.5.5 Electron Affinity
Gold Metal
222.80 kJ/mol
Rank: 1 (Overall)
64.30 kJ/mol
Rank: 15 (Overall)
Mercury Metal
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14 Thermal
14.1 Specific Heat
Lithium Metal
0.13 J/(kg K)
Rank: 39 (Overall)
0.45 J/(kg K)
Rank: 12 (Overall)
Americium Metal
14.2 Molar Heat Capacity
Americium Metal
25.42 J/mol·K
Rank: 40 (Overall)
23.35 J/mol·K
Rank: 55 (Overall)
Beryllium Metal
14.3 Thermal Conductivity
Silver Metal
318.00 W/m·K
Rank: 3 (Overall)
93.90 W/m·K
Rank: 17 (Overall)
Neptunium Metal
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14.5 Critical Temperature
Lithium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Ytterbium Metal
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14.6 Thermal Expansion
Cesium Metal
14.20 µm/(m·K)
Rank: 26 (Overall)
4.90 µm/(m·K)
Rank: 57 (Overall)
Tungsten Metal
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14.7 Enthalpy
14.7.1 Enthalpy of Vaporization
Tungsten Metal
324.40 kJ/mol
Rank: 27 (Overall)
348.80 kJ/mol
Rank: 24 (Overall)
Zinc Metal
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14.7.3 Enthalpy of Fusion
Tungsten Metal
12.55 kJ/mol
Rank: 27 (Overall)
15.31 kJ/mol
Rank: 20 (Overall)
Cesium Metal
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14.8.1 Enthalpy of Atomization
Tungsten Metal
364.00 kJ/mol
Rank: 25 (Overall)
397.50 kJ/mol
Rank: 21 (Overall)
Mercury Metal
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14.10 Standard Molar Entropy
Protactinium Me..
47.40 J/mol.K
Rank: 32 (Overall)
23.80 J/mol.K
Rank: 57 (Overall)
Beryllium Metal
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