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Californium
Californium

Lead
Lead



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Californium
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Californium vs Lead

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1 Periodic Table
1.1 Symbol
Cf
Pb
1.2 Group Number
Tennessine
Not Available
Rank: N/A (Overall)
14
Rank: 4 (Overall)
Gadolinium
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1.3 Period Number
Uranium
7
Rank: 1 (Overall)
6
Rank: 2 (Overall)
Lithium
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1.4 Block
f block
p block
1.5 Element Family
Actinide
Post-​Transition
1.6 CAS Number
Roentgenium
7440713
Rank: 20 (Overall)
7439921
Rank: 86 (Overall)
Aluminium
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1.7 Space Group Name
P63/mmc
Fm_ 3m
1.8 Space Group Number
Sodium
194.00
Rank: 5 (Overall)
225.00
Rank: 2 (Overall)
Plutonium
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2 Facts
2.1 Interesting Facts
  • Californium metal is very harmful and highly radioactive.
  • Californium metal is the heaviest metal.
  • Galena mineral contains almost 87% of Lead metal in it, Galena is sulfide mineral.
  • The best available source of Lead metal today is by recycling automobile batteries.
2.2 Sources
Made by Bombarding Curium with Helium Ions
Earth's crust, Found in Minerals, Mining, Ores of metals, Ores of Minerals
2.3 History
2.3.1 Who Discovered
Lawrence Berkeley National Laboratory
Unknown
2.3.2 Discovery
In 1950
In Middle Easterns (7000 BCE)
2.4 Abundance
2.4.1 Abundance In Universe
Iron
Not Available
Rank: N/A (Overall)
1 * 10-6 %
Rank: 16 (Overall)
Thallium
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2.4.2 Abundance In Sun
Iron
~-9999 %
Rank: N/A (Overall)
~0.000001 %
Rank: 18 (Overall)
Beryllium
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2.4.4 Abundance In Meteorites
Iron
Not Available
Rank: N/A (Overall)
0.00 %
Rank: 23 (Overall)
Gold
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2.5.2 Abundance In Earth's Crust
Aluminium
Not Available
Rank: N/A (Overall)
0.00 %
Rank: 26 (Overall)
Radium
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2.5.3 Abundance In Oceans
Sodium
Not Available
Rank: N/A (Overall)
0.00 %
Rank: 22 (Overall)
Protactinium
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2.6.2 Abundance In Humans
Calcium
Not Available
Rank: N/A (Overall)
0.00 %
Rank: 8 (Overall)
Radium
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3 Uses
3.1 Uses & Benefits
  • Californium metal has a very strong neutron emitter. It is used as a metal detector.
  • It also used as an identifier to check Water and oil layers in oil wells.
  • It is also used in insecticides, hair dyes and as an anti-knocking additive for petrol. But all these are banned by the government as Lead metal is known for detrimental to health.
3.1.1 Industrial Uses
Chemical Industry
Chemical Industry, Electrical Industry, Electronic Industry
3.1.2 Medical Uses
NA
Surgical Instruments Manufacturing
3.1.3 Other Uses
Alloys, Nuclear Research
Alloys
3.2 Biological Properties
3.2.1 Toxicity
Toxic
Toxic
3.2.2 Present in Human Body
7% Actinide Series Metals have it !
70% Post Transition Metals Metals have it !
3.2.3 In Blood
Sodium
0.00 Blood/mg dm-3
Rank: 37 (Overall)
0.21 Blood/mg dm-3
Rank: 11 (Overall)
Plutonium
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3.2.5 In Bone
Calcium
0.00 p.p.m.
Rank: 36 (Overall)
30.00 p.p.m.
Rank: 10 (Overall)
Plutonium
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4 Physical
4.1 Melting Point
Tungsten
900.00 °C
Rank: 50 (Overall)
327.50 °C
Rank: 67 (Overall)
Francium
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4.3 Boiling Point
Tungsten
1,470.00 °C
Rank: 59 (Overall)
1,740.00 °C
Rank: 53 (Overall)
Flerovium
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4.5 Appearance
4.5.1 Physical State
Solid
Solid
4.5.2 Color
Silver
Gray
4.5.3 Luster
NA
Metallic
4.6 Hardness
4.6.1 Mohs Hardness
Chromium
3.00
Rank: 12 (Overall)
1.50
Rank: 18 (Overall)
Cesium
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4.6.2 Brinell Hardness
Osmium
Not Available
Rank: N/A (Overall)
38.00 MPa
Rank: 49 (Overall)
Cesium
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5.1.2 Vickers Hardness
Tungsten
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Palladium
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5.2 Speed of Sound
Technetium
Not Available
Rank: N/A (Overall)
1,190.00 m/s
Rank: 52 (Overall)
Thallium
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5.3 Optical Properties
5.3.1 Refractive Index
Palladium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Mercury
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5.4.2 Reflectivity
Silver
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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5.5 Allotropes
No Actinide Series Metals has it !
20% Post Transition Metals Metals have it !
5.5.1 α Allotropes
Not Available
Not Available
5.5.2 β Allotropes
Not Available
Not Available
5.5.3 γ Allotropes
Not Available
Not Available
6 Chemical
6.1 Chemical Formula
Cf
Pb
6.2 Isotopes
6.2.1 Known Isotopes
Palladium
20
Rank: 19 (Overall)
35
Rank: 4 (Overall)
Tennessine
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6.3 Electronegativity
6.3.1 Pauling Electronegativity
Gold
1.30
Rank: 32 (Overall)
1.87
Rank: 13 (Overall)
Francium
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6.4.1 Sanderson Electronegativity
Cobalt
Not Available
Rank: N/A (Overall)
2.29
Rank: 4 (Overall)
Cesium
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6.5.1 Allred Rochow Electronegativity
Gallium
1.20
Rank: 27 (Overall)
1.55
Rank: 11 (Overall)
Cesium
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6.6.2 Mulliken-Jaffe Electronegativity
Polonium
Not Available
Rank: N/A (Overall)
2.41
Rank: 2 (Overall)
Cesium
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6.6.4 Allen Electronegativity
Berkelium
Not Available
Rank: N/A (Overall)
1.85
Rank: 8 (Overall)
Cesium
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6.7 Electropositivity
6.7.1 Pauling Electropositivity
Francium
2.70
Rank: 22 (Overall)
1.67
Rank: 51 (Overall)
Gold
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6.8 Ionization Energies
6.8.1 1st Energy Level
Chromium
608.00 kJ/mol
Rank: 49 (Overall)
715.60 kJ/mol
Rank: 31 (Overall)
Cesium
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6.9.1 2nd Energy Level
Chromium
1,206.00 kJ/mol
Rank: 60 (Overall)
1,450.50 kJ/mol
Rank: 43 (Overall)
Ruthenium
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6.9.2 3rd Energy Level
Chromium
2,267.00 kJ/mol
Rank: 58 (Overall)
3,081.50 kJ/mol
Rank: 23 (Overall)
Osmium
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7.2.1 4th Energy Level
Chromium
3,599.00 kJ/mol
Rank: 52 (Overall)
4,083.00 kJ/mol
Rank: 35 (Overall)
Thorium
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7.3.1 5th Energy Level
Chromium
Not Available
Rank: N/A (Overall)
6,640.00 kJ/mol
Rank: 20 (Overall)
Dubnium
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7.3.2 6th Energy Level
Chromium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Seaborgium
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8.1.1 7th Energy level
Chromium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Bohrium
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8.1.2 8th Energy Level
Chromium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Hassium
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8.2.1 9th Energy Level
Chromium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Yttrium
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8.3.1 10th Energy Level
Chromium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Strontium
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8.3.2 11th Energy Level
Magnesium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Yttrium
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8.5.1 12th Energy Level
Magnesium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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8.6.2 13th Energy Level
Titanium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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8.6.3 14th Energy Level
Vanadium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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8.6.5 15th Energy Level
Chromium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Manganese
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8.6.7 16th Energy Level
Manganese
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Iron
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8.6.8 17th Energy Level
Iron
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Cobalt
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8.8.2 18th Energy Level
Cobalt
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Nickel
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8.8.3 19th Energy Level
Nickel
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Copper
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8.8.5 20th Energy Level
Zinc
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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8.8.7 21st Energy Level
Zinc
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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8.8.8 22nd Energy Level
Copper
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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8.9.1 23rd Energy Level
Copper
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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8.11.1 24th Energy Level
Iron
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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8.11.2 25th Energy Level
Molybdenum
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
8.12.2 26th Energy Level
Molybdenum
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
9.1.2 27th Energy Level
Molybdenum
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
9.1.3 28th Energy Level
Molybdenum
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
9.1.5 29th Energy Level
Molybdenum
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
9.1.6 30th Energy Level
Molybdenum
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
9.2 Electrochemical Equivalent
Francium
3.12 g/amp-hr
Rank: 15 (Overall)
3.87 g/amp-hr
Rank: 9 (Overall)
Beryllium
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9.3 Electron Work Function
Platinum
Not Available
Rank: N/A (Overall)
4.25 eV
Rank: 21 (Overall)
Cesium
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9.5 Other Chemical Properties
Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility
Anti Corrosion, Ionization, Radioactive Isotopes
10 Atomic
10.1 Atomic Number
Tennessine
98
Rank: 20 (Overall)
82
Rank: 34 (Overall)
Lithium
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10.2 Electron Configuration
[Rn] 5f10 7s2
[Xe] 4f14 5d10 6s2 6p2
10.3 Crystal Structure
Double Hexagonal Close Packed (DHCP)
Face Centered Cubic (FCC)
10.3.1 Crystal Lattice
10.4 Atom
10.4.1 Number of Protons
Tennessine
98
Rank: 20 (Overall)
82
Rank: 34 (Overall)
Lithium
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10.4.4 Number of Neutrons
Flerovium
153
Rank: 9 (Overall)
125
Rank: 19 (Overall)
Lithium
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10.4.6 Number of Electrons
Tennessine
98
Rank: 20 (Overall)
82
Rank: 34 (Overall)
Lithium
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10.5 Radius of an Atom
10.5.1 Atomic Radius
Cesium
186.00 pm
Rank: 9 (Overall)
175.00 pm
Rank: 19 (Overall)
Beryllium
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11.1.1 Covalent Radius
Francium
Not Available
Rank: N/A (Overall)
146.00 pm
Rank: 38 (Overall)
Beryllium
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11.2.1 Van der Waals Radius
Francium
Not Available
Rank: N/A (Overall)
202.00 pm
Rank: 27 (Overall)
Zinc
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11.4 Atomic Weight
Tennessine
251.00 amu
Rank: 17 (Overall)
207.20 amu
Rank: 30 (Overall)
Lithium
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11.5 Atomic Volume
Cesium
Not Available
Rank: N/A (Overall)
18.17 cm3/mol
Rank: 27 (Overall)
Manganese
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11.7 Adjacent Atomic Numbers
11.7.1 Previous Element
11.7.2 Next Element
11.8 Valence Electron Potential
Platinum
44.50 (-eV)
Rank: 38 (Overall)
24.20 (-eV)
Rank: 57 (Overall)
Francium
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11.10 Lattice Constant
Manganese
338.00 pm
Rank: 47 (Overall)
495.08 pm
Rank: 16 (Overall)
Beryllium
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11.11 Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
11.12 Lattice C/A Ratio
Cadmium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Beryllium
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12 Mechanical
12.1 Density
12.1.1 Density At Room Temperature
Hassium
15.10 g/cm3
Rank: 21 (Overall)
11.34 g/cm3
Rank: 33 (Overall)
Lithium
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12.2.2 Density When Liquid (at m.p.)
Osmium
Not Available
Rank: N/A (Overall)
10.66 g/cm3
Rank: 15 (Overall)
Lithium
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12.3 Tensile Strength
Iron
Not Available
Rank: N/A (Overall)
12.00 MPa
Rank: 20 (Overall)
Indium
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12.4 Viscosity
Mercury
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Mercury
12.5 Vapor Pressure
12.5.1 Vapor Pressure at 1000 K
Strontium
Not Available
Rank: N/A (Overall)
1.64 (Pa)
Rank: 7 (Overall)
Cerium
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12.5.3 Vapor Pressure at 2000 K
Chromium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Tungsten
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12.6 Elasticity properties
12.6.1 Shear Modulus
Osmium
Not Available
Rank: N/A (Overall)
5.60 GPa
Rank: 47 (Overall)
Potassium
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12.6.2 Bulk Modulus
Osmium
Not Available
Rank: N/A (Overall)
46.00 GPa
Rank: 24 (Overall)
Cesium
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12.6.3 Young's Modulus
Iridium
Not Available
Rank: N/A (Overall)
16.00 GPa
Rank: 48 (Overall)
Cesium
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12.7 Poisson Ratio
Gallium
Not Available
Rank: N/A (Overall)
0.44
Rank: 3 (Overall)
Beryllium
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12.8 Other Mechanical Properties
Malleable, Sectile
Ductile, Malleable
13 Magnetic
13.1 Magnetic Characteristics
13.1.1 Specific Gravity
Cobalt
15.10
Rank: 13 (Overall)
11.35
Rank: 25 (Overall)
Lithium
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13.1.2 Magnetic Ordering
Paramagnetic
Diamagnetic
13.1.3 Permeability
Iron
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Bismuth
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13.1.4 Susceptibility
Iron
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Bismuth
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13.2 Electrical Properties
13.2.1 Electrical Property
Unknown
Poor Conductor
13.2.2 Resistivity
Mercury
Not Available
Rank: N/A (Overall)
208.00 nΩ·m
Rank: 16 (Overall)
Thallium
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13.2.3 Electrical Conductivity
Silver
Not Available
Rank: N/A (Overall)
0.05 106/cm Ω
Rank: 36 (Overall)
Plutonium
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13.2.4 Electron Affinity
Gold
Not Available
Rank: N/A (Overall)
35.10 kJ/mol
Rank: 28 (Overall)
Mercury
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14 Thermal
14.1 Specific Heat
Lithium
Not Available
Rank: N/A (Overall)
0.13 J/(kg K)
Rank: 39 (Overall)
Americium
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14.2 Molar Heat Capacity
Americium
Not Available
Rank: N/A (Overall)
26.65 J/mol·K
Rank: 26 (Overall)
Beryllium
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14.3 Thermal Conductivity
Silver
Not Available
Rank: N/A (Overall)
35.30 W/m·K
Rank: 38 (Overall)
Neptunium
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14.4 Critical Temperature
Lithium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Ytterbium
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14.5 Thermal Expansion
Cesium
Not Available
Rank: N/A (Overall)
28.90 µm/(m·K)
Rank: 13 (Overall)
Tungsten
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14.6 Enthalpy
14.6.1 Enthalpy of Vaporization
Tungsten
Not Available
Rank: N/A (Overall)
179.40 kJ/mol
Rank: 43 (Overall)
Zinc
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14.6.2 Enthalpy of Fusion
Tungsten
Not Available
Rank: N/A (Overall)
4.77 kJ/mol
Rank: 53 (Overall)
Cesium
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14.6.3 Enthalpy of Atomization
Tungsten
Not Available
Rank: N/A (Overall)
194.60 kJ/mol
Rank: 45 (Overall)
Mercury
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14.7 Standard Molar Entropy
Protactinium
Not Available
Rank: N/A (Overall)
64.80 J/mol.K
Rank: 17 (Overall)
Beryllium
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