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Strontium
Strontium

Tantalum
Tantalum



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Strontium
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Strontium vs Tantalum

1 Periodic Table
1.1 Symbol
Sr
Ta
1.2 Group Number
Tennessine
2
Rank: 16 (Overall)
5
Rank: 13 (Overall)
Gadolinium
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1.3 Period Number
Uranium
5
Rank: 3 (Overall)
6
Rank: 2 (Overall)
Lithium
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1.4 Block
s block
d block
1.5 Element Family
Alkaline Earth
Transition Metal
1.6 CAS Number
Roentgenium
7440246
Rank: 56 (Overall)
7440257
Rank: 55 (Overall)
Aluminium
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1.7 Space Group Name
Fm_ 3m
Im_ 3m
1.8 Space Group Number
Sodium
225.00
Rank: 2 (Overall)
229.00
Rank: 1 (Overall)
Plutonium
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2 Facts
2.1 Interesting Facts
  • Strontium element is softer than Calcium.
  • Silvery Strontium turns yellow, if exposed to air.
  • Tantalum metal is known as corrosion resistance.
  • Tantalum metal can easily fabricated and It is a good conductor of heat and electricity.
2.2 Sources
Found in Minerals, Mining, Ores of Minerals
Found in Minerals, Mining, Ores of Minerals
2.3 History
2.3.1 Who Discovered
William Cruickshank
Anders Gustaf Ekeberg
2.3.2 Discovery
In 1787
In 1802
2.4 Abundance
2.4.1 Abundance In Universe
Iron
4 * 10-6 %
Rank: 14 (Overall)
8 * 10-9 %
Rank: 31 (Overall)
Thallium
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2.4.2 Abundance In Sun
Iron
~0.000005 %
Rank: 15 (Overall)
~-9999 %
Rank: N/A (Overall)
Beryllium
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2.4.3 Abundance In Meteorites
Iron
0.00 %
Rank: 15 (Overall)
0.00 %
Rank: 49 (Overall)
Gold
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2.4.4 Abundance In Earth's Crust
Aluminium
0.04 %
Rank: 10 (Overall)
0.00 %
Rank: 37 (Overall)
Radium
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2.4.5 Abundance In Oceans
Sodium
0.00 %
Rank: 4 (Overall)
0.00 %
Rank: 31 (Overall)
Protactinium
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2.4.6 Abundance In Humans
Calcium
0.00 %
Rank: 7 (Overall)
Not Available
Rank: N/A (Overall)
Radium
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3 Uses
3.1 Uses & Benefits
  • Strontium metal is used to producing ferrite magnets as well as refining zinc.
  • By-product of nuclear reactors called Strontium-90 is a radioactive isotope; it is absorbed by tissues and destroys bone marrow and cancer growth.
  • Tantalum metal is mainly used in the manufacturing of electron components. Its Oxide layer acts as an insulator.
  • Tantalum metal is also used in surgical transplant like replacement of bone, skull plates and as a woven gauze.
3.1.1 Industrial Uses
Ammunition Industry, Chemical 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
Non Toxic
Low Toxic
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
0.03 Blood/mg dm-3
Rank: 19 (Overall)
Not Available
Rank: N/A (Overall)
Plutonium
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3.2.4 In Bone
Calcium
140.00 p.p.m.
Rank: 7 (Overall)
0.03 p.p.m.
Rank: 28 (Overall)
Plutonium
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4 Physical
4.1 Melting Point
Tungsten
769.00 °C
Rank: 57 (Overall)
2,996.00 °C
Rank: 4 (Overall)
Francium
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4.2 Boiling Point
Tungsten
1,384.00 °C
Rank: 61 (Overall)
5,425.00 °C
Rank: 4 (Overall)
Flerovium
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4.3 Appearance
4.3.1 Physical State
Solid
Solid
4.3.2 Color
Silvery White
Gray Blue
4.3.3 Luster
Metallic
Metallic
4.4 Hardness
4.4.1 Mohs Hardness
Chromium
1.50
Rank: 18 (Overall)
6.50
Rank: 5 (Overall)
Cesium
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4.4.2 Brinell Hardness
Osmium
Not Available
Rank: N/A (Overall)
440.00 MPa
Rank: 28 (Overall)
Cesium
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4.4.3 Vickers Hardness
Tungsten
Not Available
Rank: N/A (Overall)
870.00 MPa
Rank: 12 (Overall)
Palladium
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4.5 Speed of Sound
Technetium
Not Available
Rank: N/A (Overall)
3,400.00 m/s
Rank: 22 (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)
78.00 %
Rank: 6 (Overall)
Molybdenum
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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
Sr
Ta
5.2 Isotopes
5.2.1 Known Isotopes
Palladium
27
Rank: 12 (Overall)
31
Rank: 8 (Overall)
Tennessine
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5.3 Electronegativity
5.3.1 Pauling Electronegativity
Gold
0.95
Rank: 47 (Overall)
1.50
Rank: 27 (Overall)
Francium
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5.3.2 Sanderson Electronegativity
Cobalt
0.72
Rank: 27 (Overall)
Not Available
Rank: N/A (Overall)
Cesium
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5.3.3 Allred Rochow Electronegativity
Gallium
0.99
Rank: 37 (Overall)
1.33
Rank: 22 (Overall)
Cesium
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5.3.4 Mulliken-Jaffe Electronegativity
Polonium
1.00
Rank: 18 (Overall)
Not Available
Rank: N/A (Overall)
Cesium
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5.3.5 Allen Electronegativity
Berkelium
0.96
Rank: 40 (Overall)
1.34
Rank: 33 (Overall)
Cesium
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5.4 Electropositivity
5.4.1 Pauling Electropositivity
Francium
3.05
Rank: 7 (Overall)
2.50
Rank: 27 (Overall)
Gold
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5.5 Ionization Energies
5.5.1 1st Energy Level
Chromium
549.50 kJ/mol
Rank: 70 (Overall)
761.00 kJ/mol
Rank: 18 (Overall)
Cesium
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5.5.2 2nd Energy Level
Chromium
1,064.20 kJ/mol
Rank: 77 (Overall)
1,500.00 kJ/mol
Rank: 40 (Overall)
Ruthenium
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5.5.3 3rd Energy Level
Chromium
4,138.00 kJ/mol
Rank: 10 (Overall)
Not Available
Rank: N/A (Overall)
Osmium
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5.5.4 4th Energy Level
Chromium
5,500.00 kJ/mol
Rank: 13 (Overall)
Not Available
Rank: N/A (Overall)
Thorium
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5.5.5 5th Energy Level
Chromium
6,910.00 kJ/mol
Rank: 18 (Overall)
Not Available
Rank: N/A (Overall)
Dubnium
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5.5.6 6th Energy Level
Chromium
8,760.00 kJ/mol
Rank: 18 (Overall)
Not Available
Rank: N/A (Overall)
Seaborgium
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5.5.7 7th Energy level
Chromium
10,230.00 kJ/mol
Rank: 19 (Overall)
Not Available
Rank: N/A (Overall)
Bohrium
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5.5.8 8th Energy Level
Chromium
11,800.00 kJ/mol
Rank: 19 (Overall)
Not Available
Rank: N/A (Overall)
Hassium
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5.5.9 9th Energy Level
Chromium
15,600.00 kJ/mol
Rank: 17 (Overall)
Not Available
Rank: N/A (Overall)
Yttrium
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5.5.10 10th Energy Level
Chromium
17,100.00 kJ/mol
Rank: 19 (Overall)
Not Available
Rank: N/A (Overall)
Strontium
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5.5.11 11th Energy Level
Magnesium
31,270.00 kJ/mol
Rank: 6 (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
1.64 g/amp-hr
Rank: 45 (Overall)
1.35 g/amp-hr
Rank: 49 (Overall)
Beryllium
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5.7 Electron Work Function
Platinum
2.59 eV
Rank: 42 (Overall)
4.25 eV
Rank: 21 (Overall)
Cesium
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5.8 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility
6 Atomic
6.1 Atomic Number
Tennessine
38
Rank: 74 (Overall)
73
Rank: 43 (Overall)
Lithium
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6.2 Electron Configuration
[Kr] 5s2
[Xe] 4f14 5d3 6s2
6.3 Crystal Structure
Face Centered Cubic (FCC)
Body Centered Cubic (BCC)
6.3.1 Crystal Lattice
6.4 Atom
6.4.1 Number of Protons
Tennessine
38
Rank: 73 (Overall)
73
Rank: 42 (Overall)
Lithium
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6.4.2 Number of Neutrons
Flerovium
50
Rank: 55 (Overall)
108
Rank: 28 (Overall)
Lithium
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6.4.3 Number of Electrons
Tennessine
38
Rank: 73 (Overall)
73
Rank: 42 (Overall)
Lithium
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6.5 Radius of an Atom
6.5.1 Atomic Radius
Cesium
215.00 pm
Rank: 5 (Overall)
146.00 pm
Rank: 35 (Overall)
Beryllium
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6.5.2 Covalent Radius
Francium
195.00 pm
Rank: 15 (Overall)
170.00 pm
Rank: 25 (Overall)
Beryllium
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6.5.3 Van der Waals Radius
Francium
249.00 pm
Rank: 7 (Overall)
200.00 pm
Rank: 28 (Overall)
Zinc
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6.6 Atomic Weight
Tennessine
87.62 amu
Rank: 68 (Overall)
180.95 amu
Rank: 38 (Overall)
Lithium
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6.7 Atomic Volume
Cesium
33.70 cm3/mol
Rank: 6 (Overall)
10.90 cm3/mol
Rank: 44 (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
25.70 (-eV)
Rank: 56 (Overall)
110.00 (-eV)
Rank: 7 (Overall)
Francium
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6.10 Lattice Constant
Manganese
608.49 pm
Rank: 6 (Overall)
330.13 pm
Rank: 50 (Overall)
Beryllium
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6.11 Lattice Angles
π/2, π/2, π/2
π/2, π/2, π/2
6.12 Lattice C/A Ratio
Cadmium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Beryllium
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7 Mechanical
7.1 Density
7.1.1 Density At Room Temperature
Hassium
2.64 g/cm3
Rank: 75 (Overall)
16.69 g/cm3
Rank: 18 (Overall)
Lithium
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7.1.2 Density When Liquid (at m.p.)
Osmium
2.38 g/cm3
Rank: 52 (Overall)
15.00 g/cm3
Rank: 9 (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
121.00 (Pa)
Rank: 1 (Overall)
Not Available
Rank: N/A (Overall)
Cerium
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7.4.2 Vapor Pressure at 2000 K
Chromium
Not Available
Rank: N/A (Overall)
0.00 (Pa)
Rank: 31 (Overall)
Tungsten
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7.5 Elasticity properties
7.5.1 Shear Modulus
Osmium
6.03 GPa
Rank: 46 (Overall)
69.00 GPa
Rank: 13 (Overall)
Potassium
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7.5.2 Bulk Modulus
Osmium
Not Available
Rank: N/A (Overall)
200.00 GPa
Rank: 8 (Overall)
Cesium
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7.5.3 Young's Modulus
Iridium
15.70 GPa
Rank: 49 (Overall)
186.00 GPa
Rank: 13 (Overall)
Cesium
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7.6 Poisson Ratio
Gallium
0.28
Rank: 17 (Overall)
0.34
Rank: 10 (Overall)
Beryllium
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7.7 Other Mechanical Properties
NA
Ductile
8 Magnetic
8.1 Magnetic Characteristics
8.1.1 Specific Gravity
Cobalt
2.64
Rank: 63 (Overall)
16.65
Rank: 11 (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
NA
Conductor
8.2.2 Resistivity
Mercury
132.00 nΩ·m
Rank: 24 (Overall)
131.00 nΩ·m
Rank: 25 (Overall)
Thallium
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8.2.3 Electrical Conductivity
Silver
0.08 106/cm Ω
Rank: 26 (Overall)
0.08 106/cm Ω
Rank: 27 (Overall)
Plutonium
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8.2.4 Electron Affinity
Gold
5.03 kJ/mol
Rank: 38 (Overall)
31.00 kJ/mol
Rank: 29 (Overall)
Mercury
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9 Thermal
9.1 Specific Heat
Lithium
0.30 J/(kg K)
Rank: 18 (Overall)
0.14 J/(kg K)
Rank: 37 (Overall)
Americium
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9.2 Molar Heat Capacity
Americium
26.40 J/mol·K
Rank: 28 (Overall)
25.36 J/mol·K
Rank: 41 (Overall)
Beryllium
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9.3 Thermal Conductivity
Silver
35.40 W/m·K
Rank: 37 (Overall)
57.50 W/m·K
Rank: 27 (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
22.50 µm/(m·K)
Rank: 18 (Overall)
6.30 µm/(m·K)
Rank: 52 (Overall)
Tungsten
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9.6 Enthalpy
9.6.1 Enthalpy of Vaporization
Tungsten
150.00 kJ/mol
Rank: 47 (Overall)
753.10 kJ/mol
Rank: 2 (Overall)
Zinc
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9.6.2 Enthalpy of Fusion
Tungsten
9.16 kJ/mol
Rank: 38 (Overall)
31.40 kJ/mol
Rank: 3 (Overall)
Cesium
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9.6.3 Enthalpy of Atomization
Tungsten
163.20 kJ/mol
Rank: 50 (Overall)
782.00 kJ/mol
Rank: 3 (Overall)
Mercury
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9.7 Standard Molar Entropy
Protactinium
55.00 J/mol.K
Rank: 26 (Overall)
41.50 J/mol.K
Rank: 37 (Overall)
Beryllium
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