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Lutetium
Lutetium

Erbium
Erbium



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Lutetium
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Lutetium vs Erbium

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1 Periodic Table
1.1 Symbol
Lu
Er
1.2 Group Number
Tennessine
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Gadolinium
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1.3 Period Number
Uranium
6
Rank: 2 (Overall)
6
Rank: 2 (Overall)
Lithium
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1.4 Block
f block
f block
1.5 Element Family
Lanthanide
Lanthanide
1.6 CAS Number
Roentgenium
7439943
Rank: 84 (Overall)
7440520
Rank: 35 (Overall)
Aluminium
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1.7 Space Group Name
P63/mmc
P63/mmc
1.8 Space Group Number
Sodium
194.00
Rank: 5 (Overall)
194.00
Rank: 5 (Overall)
Plutonium
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2 Facts
2.1 Interesting Facts
  • Metal dust of Lutetium element is highly explosive.
  • Lutetium metal is corrosion resistance and acts stable in air.
  • Erbium metal is used as alloyed with Vanadium to make it softer.
  • Recent studies shows that it is helpful for metabolism.
2.2 Sources
Found in Minerals, Mining, Ores of Minerals
Mining
2.3 History
2.3.1 Who Discovered
Georges Urbain and Carl Auer von Welsbach
Carl Gustaf Mosander
2.3.2 Discovery
In 1906
In 1842
2.4 Abundance
2.4.1 Abundance In Universe
Iron
1 * 10-8 %
Rank: 30 (Overall)
2 * 10-7 %
Rank: 22 (Overall)
Thallium
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2.4.2 Abundance In Sun
Iron
~0.0000001 %
Rank: 26 (Overall)
~0.0000001 %
Rank: 26 (Overall)
Beryllium
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2.4.3 Abundance In Meteorites
Iron
0.00 %
Rank: 48 (Overall)
0.00 %
Rank: 36 (Overall)
Gold
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2.4.4 Abundance In Earth's Crust
Aluminium
0.00 %
Rank: 41 (Overall)
0.00 %
Rank: 32 (Overall)
Radium
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2.4.5 Abundance In Oceans
Sodium
0.00 %
Rank: 44 (Overall)
0.00 %
Rank: 36 (Overall)
Protactinium
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2.4.6 Abundance In Humans
Calcium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Radium
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3 Uses
3.1 Uses & Benefits
  • Lutetium metal is used outside research. It has commercial uses like Industrial catalyst for cracking oil refineries of hydrocarbons .
  • It has a tendency to get tarnished in the open air, but when alloyed with elements like erbium, vanadium, its hardness levels decreases.
  • Its compounds like Erbium oxide is used in safety glasses of welders and metal workers.
3.1.1 Industrial Uses
NA
Chemical 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
27% Lanthanide Series Metals have it !
27% Lanthanide Series Metals have it !
3.2.3 In Blood
Sodium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Plutonium
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3.2.4 In Bone
Calcium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Plutonium
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4 Physical
4.1 Melting Point
Tungsten
1,652.00 °C
Rank: 19 (Overall)
1,522.00 °C
Rank: 28 (Overall)
Francium
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4.2 Boiling Point
Tungsten
3,402.00 °C
Rank: 19 (Overall)
2,510.00 °C
Rank: 44 (Overall)
Flerovium
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4.3 Appearance
4.3.1 Physical State
Solid
Solid
4.3.2 Color
Silvery White
Silvery White
4.3.3 Luster
Metallic
Lustrous
4.4 Hardness
4.4.1 Mohs Hardness
Chromium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Cesium
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4.4.2 Brinell Hardness
Osmium
893.00 MPa
Rank: 10 (Overall)
814.00 MPa
Rank: 11 (Overall)
Cesium
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4.4.3 Vickers Hardness
Tungsten
1,160.00 MPa
Rank: 8 (Overall)
589.00 MPa
Rank: 19 (Overall)
Palladium
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4.5 Speed of Sound
Technetium
Not Available
Rank: N/A (Overall)
2,830.00 m/s
Rank: 28 (Overall)
Thallium
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4.6 Optical Properties
4.6.1 Refractive Index
Palladium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Mercury
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4.6.2 Reflectivity
Silver
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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4.7 Allotropes
No Lanthanide Series Metals has it !
No Lanthanide Series Metals has 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
Lu
Er
5.2 Isotopes
5.2.1 Known Isotopes
Palladium
35
Rank: 4 (Overall)
31
Rank: 8 (Overall)
Tennessine
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5.3 Electronegativity
5.3.1 Pauling Electronegativity
Gold
1.27
Rank: 34 (Overall)
1.24
Rank: 36 (Overall)
Francium
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5.3.2 Sanderson Electronegativity
Cobalt
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Cesium
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5.3.3 Allred Rochow Electronegativity
Gallium
1.14
Rank: 28 (Overall)
1.11
Rank: 29 (Overall)
Cesium
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5.3.4 Mulliken-Jaffe Electronegativity
Polonium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Cesium
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5.3.5 Allen Electronegativity
Berkelium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Cesium
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5.4 Electropositivity
5.4.1 Pauling Electropositivity
Francium
2.73
Rank: 20 (Overall)
2.76
Rank: 18 (Overall)
Gold
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5.5 Ionization Energies
5.5.1 1st Energy Level
Chromium
523.50 kJ/mol
Rank: 79 (Overall)
589.30 kJ/mol
Rank: 59 (Overall)
Cesium
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5.5.2 2nd Energy Level
Chromium
1,340.00 kJ/mol
Rank: 51 (Overall)
1,150.00 kJ/mol
Rank: 68 (Overall)
Ruthenium
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5.5.3 3rd Energy Level
Chromium
2,022.30 kJ/mol
Rank: 73 (Overall)
2,194.00 kJ/mol
Rank: 65 (Overall)
Osmium
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5.5.4 4th Energy Level
Chromium
4,370.00 kJ/mol
Rank: 28 (Overall)
4,120.00 kJ/mol
Rank: 33 (Overall)
Thorium
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5.5.5 5th Energy Level
Chromium
6,445.00 kJ/mol
Rank: 21 (Overall)
Not Available
Rank: N/A (Overall)
Dubnium
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5.5.6 6th Energy Level
Chromium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Seaborgium
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5.5.7 7th Energy level
Chromium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Bohrium
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5.5.8 8th Energy Level
Chromium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Hassium
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5.5.9 9th Energy Level
Chromium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Yttrium
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5.5.10 10th Energy Level
Chromium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Strontium
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5.5.11 11th Energy Level
Magnesium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Yttrium
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5.5.12 12th Energy Level
Magnesium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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5.5.13 13th Energy Level
Titanium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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5.5.14 14th Energy Level
Vanadium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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5.5.15 15th Energy Level
Chromium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Manganese
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5.5.16 16th Energy Level
Manganese
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Iron
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5.5.17 17th Energy Level
Iron
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Cobalt
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5.5.18 18th Energy Level
Cobalt
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Nickel
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5.5.19 19th Energy Level
Nickel
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Copper
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5.5.20 20th Energy Level
Zinc
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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5.5.21 21st Energy Level
Zinc
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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5.5.22 22nd Energy Level
Copper
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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5.5.23 23rd Energy Level
Copper
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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5.5.24 24th Energy Level
Iron
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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5.5.25 25th Energy Level
Molybdenum
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
5.5.26 26th Energy Level
Molybdenum
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
5.5.27 27th Energy Level
Molybdenum
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
5.5.28 28th Energy Level
Molybdenum
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
5.5.29 29th Energy Level
Molybdenum
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
5.5.30 30th Energy Level
Molybdenum
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
5.6 Electrochemical Equivalent
Francium
2.18 g/amp-hr
Rank: 23 (Overall)
2.08 g/amp-hr
Rank: 28 (Overall)
Beryllium
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5.7 Electron Work Function
Platinum
3.30 eV
Rank: 33 (Overall)
Not Available
Rank: N/A (Overall)
Cesium
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5.8 Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
Ionization, Radioactive Isotopes, Solubility
6 Atomic
6.1 Atomic Number
Tennessine
71
Rank: 45 (Overall)
68
Rank: 48 (Overall)
Lithium
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6.2 Electron Configuration
[Xe] 6s2 4f14 5d1
[Xe] 4f12 6s2
6.3 Crystal Structure
Hexagonal Close Packed (HCP)
Hexagonal Close Packed (HCP)
6.3.1 Crystal Lattice
6.4 Atom
6.4.1 Number of Protons
Tennessine
71
Rank: 44 (Overall)
68
Rank: 47 (Overall)
Lithium
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6.4.2 Number of Neutrons
Flerovium
104
Rank: 30 (Overall)
99
Rank: 33 (Overall)
Lithium
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6.4.3 Number of Electrons
Tennessine
71
Rank: 44 (Overall)
68
Rank: 47 (Overall)
Lithium
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6.5 Radius of an Atom
6.5.1 Atomic Radius
Cesium
174.00 pm
Rank: 20 (Overall)
176.00 pm
Rank: 18 (Overall)
Beryllium
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6.5.2 Covalent Radius
Francium
187.00 pm
Rank: 20 (Overall)
189.00 pm
Rank: 19 (Overall)
Beryllium
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6.5.3 Van der Waals Radius
Francium
221.00 pm
Rank: 22 (Overall)
Not Available
Rank: N/A (Overall)
Zinc
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6.6 Atomic Weight
Tennessine
174.97 amu
Rank: 40 (Overall)
167.26 amu
Rank: 43 (Overall)
Lithium
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6.7 Atomic Volume
Cesium
17.78 cm3/mol
Rank: 30 (Overall)
18.40 cm3/mol
Rank: 25 (Overall)
Manganese
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6.8 Adjacent Atomic Numbers
6.8.1 Previous Element
6.8.2 Next Element
6.9 Valence Electron Potential
Platinum
50.90 (-eV)
Rank: 26 (Overall)
49.00 (-eV)
Rank: 29 (Overall)
Francium
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6.10 Lattice Constant
Manganese
350.31 pm
Rank: 43 (Overall)
355.88 pm
Rank: 39 (Overall)
Beryllium
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6.11 Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, 2 π/3
6.12 Lattice C/A Ratio
Cadmium
1.59
Rank: 10 (Overall)
1.57
Rank: 17 (Overall)
Beryllium
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7 Mechanical
7.1 Density
7.1.1 Density At Room Temperature
Hassium
9.84 g/cm3
Rank: 38 (Overall)
9.07 g/cm3
Rank: 42 (Overall)
Lithium
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7.1.2 Density When Liquid (at m.p.)
Osmium
9.30 g/cm3
Rank: 22 (Overall)
8.86 g/cm3
Rank: 23 (Overall)
Lithium
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7.2 Tensile Strength
Iron
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Indium
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7.3 Viscosity
Mercury
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Mercury
7.4 Vapor Pressure
7.4.1 Vapor Pressure at 1000 K
Strontium
0.00 (Pa)
Rank: 33 (Overall)
0.00 (Pa)
Rank: 20 (Overall)
Cerium
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7.4.2 Vapor Pressure at 2000 K
Chromium
3.18 (Pa)
Rank: 11 (Overall)
Not Available
Rank: N/A (Overall)
Tungsten
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7.5 Elasticity properties
7.5.1 Shear Modulus
Osmium
27.20 GPa
Rank: 26 (Overall)
28.30 GPa
Rank: 25 (Overall)
Potassium
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7.5.2 Bulk Modulus
Osmium
47.60 GPa
Rank: 23 (Overall)
44.40 GPa
Rank: 27 (Overall)
Cesium
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7.5.3 Young's Modulus
Iridium
68.60 GPa
Rank: 30 (Overall)
69.90 GPa
Rank: 29 (Overall)
Cesium
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7.6 Poisson Ratio
Gallium
0.26
Rank: 21 (Overall)
0.24
Rank: 28 (Overall)
Beryllium
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7.7 Other Mechanical Properties
NA
Malleable
8 Magnetic
8.1 Magnetic Characteristics
8.1.1 Specific Gravity
Cobalt
9.84
Rank: 29 (Overall)
9.07
Rank: 32 (Overall)
Lithium
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8.1.2 Magnetic Ordering
Paramagnetic
Paramagnetic
8.1.3 Permeability
Iron
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Bismuth
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8.1.4 Susceptibility
Iron
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Bismuth
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8.2 Electrical Properties
8.2.1 Electrical Property
Conductor
Conductor
8.2.2 Resistivity
Mercury
582.00 nΩ·m
Rank: 9 (Overall)
0.86 nΩ·m
Rank: 63 (Overall)
Thallium
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8.2.3 Electrical Conductivity
Silver
0.02 106/cm Ω
Rank: 45 (Overall)
0.01 106/cm Ω
Rank: 53 (Overall)
Plutonium
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8.2.4 Electron Affinity
Gold
50.00 kJ/mol
Rank: 21 (Overall)
50.00 kJ/mol
Rank: 21 (Overall)
Mercury
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9 Thermal
9.1 Specific Heat
Lithium
0.15 J/(kg K)
Rank: 36 (Overall)
0.17 J/(kg K)
Rank: 34 (Overall)
Americium
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9.2 Molar Heat Capacity
Americium
26.86 J/mol·K
Rank: 24 (Overall)
28.12 J/mol·K
Rank: 11 (Overall)
Beryllium
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9.3 Thermal Conductivity
Silver
16.40 W/m·K
Rank: 51 (Overall)
14.50 W/m·K
Rank: 55 (Overall)
Neptunium
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9.4 Critical Temperature
Lithium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Ytterbium
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9.5 Thermal Expansion
Cesium
9.90 µm/(m·K)
Rank: 40 (Overall)
12.20 µm/(m·K)
Rank: 31 (Overall)
Tungsten
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9.6 Enthalpy
9.6.1 Enthalpy of Vaporization
Tungsten
355.90 kJ/mol
Rank: 22 (Overall)
261.00 kJ/mol
Rank: 35 (Overall)
Zinc
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9.6.2 Enthalpy of Fusion
Tungsten
18.70 kJ/mol
Rank: 13 (Overall)
17.20 kJ/mol
Rank: 15 (Overall)
Cesium
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9.6.3 Enthalpy of Atomization
Tungsten
398.00 kJ/mol
Rank: 20 (Overall)
314.00 kJ/mol
Rank: 33 (Overall)
Mercury
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9.7 Standard Molar Entropy
Protactinium
51.00 J/mol.K
Rank: 30 (Overall)
73.10 J/mol.K
Rank: 11 (Overall)
Beryllium
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