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Beryllium
Beryllium

Neptunium
Neptunium



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Beryllium vs Neptunium

1 Periodic Table
1.1 Symbol
Be
Np
1.2 Group Number
Tennessine
2
Rank: 16 (Overall)
Not Available
Rank: N/A (Overall)
Gadolinium
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2.2 Period Number
Uranium
2
Rank: 6 (Overall)
7
Rank: 1 (Overall)
Lithium
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2.3 Block
s block
f block
2.4 Element Family
Alkaline Earth
Actinide
2.5 CAS Number
Roentgenium
7440417
Rank: 43 (Overall)
7439998
Rank: 79 (Overall)
Aluminium
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2.7 Space Group Name
P63/mmc
Pnma
2.8 Space Group Number
Sodium
194.00
Rank: 5 (Overall)
62.00
Rank: 11 (Overall)
Plutonium
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3 Facts
3.1 Interesting Facts
  • Beryllium is best anti corrosion metal.
  • Beryllium is the lightest metal and still it is stronger than steel.
  • It also finds various applications in Nuclear reactors as a reflector.
Not Available
3.2 Sources
Earth's crust, Found in Minerals, Mining, Ores of metals, Ores of Minerals
Made by Bombarding Uranium with Neutrons, Ores of metals
3.3 History
3.3.1 Who Discovered
Louis Nicolas Vauquelin
Edwin McMillan and Philip H. Abelson
3.3.2 Discovery
In 1797
In 1940
3.4 Abundance
3.4.1 Abundance In Universe
Iron
1 * 10-7 %
Rank: 23 (Overall)
Not Available
Rank: N/A (Overall)
Thallium
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3.4.2 Abundance In Sun
Iron
~0.00000001 %
Rank: 29 (Overall)
~-9999 %
Rank: N/A (Overall)
Beryllium
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3.5.1 Abundance In Meteorites
Iron
0.00 %
Rank: 47 (Overall)
Not Available
Rank: N/A (Overall)
Gold
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3.6.1 Abundance In Earth's Crust
Aluminium
0.00 %
Rank: 35 (Overall)
Not Available
Rank: N/A (Overall)
Radium
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3.7.2 Abundance In Oceans
Sodium
0.00 %
Rank: 39 (Overall)
Not Available
Rank: N/A (Overall)
Protactinium
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3.7.4 Abundance In Humans
Calcium
0.00 %
Rank: 19 (Overall)
Not Available
Rank: N/A (Overall)
Radium
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4 Uses
4.1 Uses & Benefits
  • Its alloys with copper or nickel are used in manufacturing Gyroscopes, springs, electrical contact and non sparking tools.
  • Beryllium Alloys are used as a material for aircraft, missiles, spacecraft and satellite.
  • Currently known uses of Neptunium metal are limited to research purpose only.
  • Neptunium’s isotope neptunium-237 is used as a neutron detectors.
4.1.1 Industrial Uses
Aerospace Industry, Ammunition Industry, Automobile Industry, Electrical Industry, Electronic Industry
NA
4.1.2 Medical Uses
NA
NA
4.1.3 Other Uses
Alloys
Alloys, Nuclear Research, Research Purposes
4.2 Biological Properties
4.2.1 Toxicity
Toxic
Toxic
4.2.2 Present in Human Body
83% Alkaline Earth Metals Metals have it !
7% Actinide Series Metals have it !
4.2.3 In Blood
Sodium
0.00 Blood/mg dm-3
Rank: 32 (Overall)
0.00 Blood/mg dm-3
Rank: 37 (Overall)
Plutonium
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4.3.1 In Bone
Calcium
0.00 p.p.m.
Rank: 32 (Overall)
0.00 p.p.m.
Rank: 36 (Overall)
Plutonium
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5 Physical
5.2 Melting Point
Tungsten
1,278.00 °C
Rank: 36 (Overall)
640.00 °C
Rank: 62 (Overall)
Francium
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6.3 Boiling Point
Tungsten
2,970.00 °C
Rank: 32 (Overall)
3,902.00 °C
Rank: 13 (Overall)
Flerovium
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6.5 Appearance
6.5.1 Physical State
Solid
Solid
6.5.2 Color
White Gray
Silver
6.5.3 Luster
Metallic
Metallic
6.6 Hardness
6.6.1 Mohs Hardness
Chromium
5.50
Rank: 7 (Overall)
Not Available
Rank: N/A (Overall)
Cesium
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7.1.1 Brinell Hardness
Osmium
590.00 MPa
Rank: 21 (Overall)
Not Available
Rank: N/A (Overall)
Cesium
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7.2.1 Vickers Hardness
Tungsten
1,670.00 MPa
Rank: 4 (Overall)
Not Available
Rank: N/A (Overall)
Palladium
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7.3 Speed of Sound
Technetium
12,890.00 m/s
Rank: 2 (Overall)
Not Available
Rank: N/A (Overall)
Thallium
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7.5 Optical Properties
7.5.1 Refractive Index
Palladium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Mercury
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7.7.1 Reflectivity
Silver
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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7.9 Allotropes
No Alkaline Earth Metals Metals has it !
No Actinide Series Metals has it !
7.9.1 α Allotropes
Not Available
Not Available
7.9.2 β Allotropes
Not Available
Not Available
7.9.3 γ Allotropes
Not Available
Not Available
8 Chemical
8.1 Chemical Formula
Be
Np
8.2 Isotopes
8.2.1 Known Isotopes
Palladium
9
Rank: 29 (Overall)
20
Rank: 19 (Overall)
Tennessine
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8.3 Electronegativity
8.3.1 Pauling Electronegativity
Gold
1.57
Rank: 24 (Overall)
1.36
Rank: 29 (Overall)
Francium
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8.3.3 Sanderson Electronegativity
Cobalt
1.81
Rank: 12 (Overall)
Not Available
Rank: N/A (Overall)
Cesium
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8.3.4 Allred Rochow Electronegativity
Gallium
1.47
Rank: 14 (Overall)
1.22
Rank: 26 (Overall)
Cesium
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8.3.6 Mulliken-Jaffe Electronegativity
Polonium
1.54
Rank: 12 (Overall)
Not Available
Rank: N/A (Overall)
Cesium
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8.4.1 Allen Electronegativity
Berkelium
1.58
Rank: 23 (Overall)
Not Available
Rank: N/A (Overall)
Cesium
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8.6 Electropositivity
8.6.1 Pauling Electropositivity
Francium
2.43
Rank: 30 (Overall)
2.64
Rank: 25 (Overall)
Gold
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8.7 Ionization Energies
8.7.1 1st Energy Level
Chromium
899.50 kJ/mol
Rank: 7 (Overall)
604.50 kJ/mol
Rank: 50 (Overall)
Cesium
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8.7.2 2nd Energy Level
Chromium
1,757.10 kJ/mol
Rank: 23 (Overall)
1,128.00 kJ/mol
Rank: 72 (Overall)
Ruthenium
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8.7.4 3rd Energy Level
Chromium
14,848.70 kJ/mol
Rank: 2 (Overall)
1,997.00 kJ/mol
Rank: 74 (Overall)
Osmium
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8.7.5 4th Energy Level
Chromium
21,006.60 kJ/mol
Rank: 2 (Overall)
3,242.00 kJ/mol
Rank: 62 (Overall)
Thorium
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8.8.1 5th Energy Level
Chromium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Dubnium
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8.10.1 6th Energy Level
Chromium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Seaborgium
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9.1.2 7th Energy level
Chromium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Bohrium
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9.1.3 8th Energy Level
Chromium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Hassium
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9.1.5 9th Energy Level
Chromium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Yttrium
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9.1.7 10th Energy Level
Chromium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Strontium
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9.2.2 11th Energy Level
Magnesium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Yttrium
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9.2.5 12th Energy Level
Magnesium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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9.2.7 13th Energy Level
Titanium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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9.2.8 14th Energy Level
Vanadium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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10.1.1 15th Energy Level
Chromium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Manganese
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10.2.1 16th Energy Level
Manganese
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Iron
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10.3.1 17th Energy Level
Iron
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Cobalt
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10.4.1 18th Energy Level
Cobalt
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Nickel
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10.4.2 19th Energy Level
Nickel
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Copper
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10.5.1 20th Energy Level
Zinc
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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10.6.1 21st Energy Level
Zinc
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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10.7.2 22nd Energy Level
Copper
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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10.7.4 23rd Energy Level
Copper
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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10.7.5 24th Energy Level
Iron
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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10.7.7 25th Energy Level
Molybdenum
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
10.7.8 26th Energy Level
Molybdenum
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
10.7.9 27th Energy Level
Molybdenum
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
10.7.10 28th Energy Level
Molybdenum
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
10.7.11 29th Energy Level
Molybdenum
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
10.7.12 30th Energy Level
Molybdenum
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
10.8 Electrochemical Equivalent
Francium
0.17 g/amp-hr
Rank: 76 (Overall)
1.77 g/amp-hr
Rank: 39 (Overall)
Beryllium
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10.9 Electron Work Function
Platinum
4.98 eV
Rank: 6 (Overall)
Not Available
Rank: N/A (Overall)
Cesium
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10.10 Other Chemical Properties
Corrosion, Ionization, Radioactive Isotopes
Ionization, Radioactive Isotopes, Radioactivity, Solubility
11 Atomic
11.1 Atomic Number
Tennessine
4
Rank: 91 (Overall)
93
Rank: 25 (Overall)
Lithium
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11.2 Electron Configuration
[He] 2s2
[Rn] 5f4 6d1 7s2
11.3 Crystal Structure
Hexagonal Close Packed (HCP)
Orthorhombic (ORTH)
11.3.1 Crystal Lattice
11.4 Atom
11.4.1 Number of Protons
Tennessine
4
Rank: 90 (Overall)
93
Rank: 25 (Overall)
Lithium
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11.4.2 Number of Neutrons
Flerovium
5
Rank: 67 (Overall)
144
Rank: 14 (Overall)
Lithium
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11.4.3 Number of Electrons
Tennessine
4
Rank: 90 (Overall)
93
Rank: 25 (Overall)
Lithium
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11.5 Radius of an Atom
11.5.1 Atomic Radius
Cesium
112.00 pm
Rank: 51 (Overall)
155.00 pm
Rank: 30 (Overall)
Beryllium
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11.5.2 Covalent Radius
Francium
96.00 pm
Rank: 54 (Overall)
190.00 pm
Rank: 18 (Overall)
Beryllium
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11.5.3 Van der Waals Radius
Francium
153.00 pm
Rank: 43 (Overall)
221.00 pm
Rank: 22 (Overall)
Zinc
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11.6 Atomic Weight
Tennessine
9.01 amu
Rank: 85 (Overall)
237.00 amu
Rank: 22 (Overall)
Lithium
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11.7 Atomic Volume
Cesium
5.00 cm3/mol
Rank: 63 (Overall)
11.62 cm3/mol
Rank: 43 (Overall)
Manganese
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11.8 Adjacent Atomic Numbers
11.8.1 Previous Element
11.8.2 Next Element
11.9 Valence Electron Potential
Platinum
82.00 (-eV)
Rank: 15 (Overall)
96.00 (-eV)
Rank: 9 (Overall)
Francium
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11.10 Lattice Constant
Manganese
228.58 pm
Rank: 69 (Overall)
666.30 pm
Rank: 3 (Overall)
Beryllium
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11.11 Lattice Angles
π/2, π/2, π/2
π/2, π/2, π/2
11.12 Lattice C/A Ratio
Cadmium
1.57
Rank: 18 (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
1.85 g/cm3
Rank: 78 (Overall)
19.38 g/cm3
Rank: 14 (Overall)
Lithium
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12.1.2 Density When Liquid (at m.p.)
Osmium
1.69 g/cm3
Rank: 54 (Overall)
Not Available
Rank: N/A (Overall)
Lithium
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12.2 Tensile Strength
Iron
Not Available
Rank: N/A (Overall)
125.00 MPa
Rank: 14 (Overall)
Indium
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12.3 Viscosity
Mercury
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Mercury
12.4 Vapor Pressure
12.4.1 Vapor Pressure at 1000 K
Strontium
0.00 (Pa)
Rank: 19 (Overall)
Not Available
Rank: N/A (Overall)
Cerium
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12.4.2 Vapor Pressure at 2000 K
Chromium
Not Available
Rank: N/A (Overall)
0.11 (Pa)
Rank: 17 (Overall)
Tungsten
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12.5 Elasticity properties
12.5.1 Shear Modulus
Osmium
132.00 GPa
Rank: 7 (Overall)
Not Available
Rank: N/A (Overall)
Potassium
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12.5.2 Bulk Modulus
Osmium
130.00 GPa
Rank: 13 (Overall)
Not Available
Rank: N/A (Overall)
Cesium
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12.5.3 Young's Modulus
Iridium
287.00 GPa
Rank: 7 (Overall)
Not Available
Rank: N/A (Overall)
Cesium
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12.6 Poisson Ratio
Gallium
0.03
Rank: 35 (Overall)
Not Available
Rank: N/A (Overall)
Beryllium
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12.7 Other Mechanical Properties
NA
Ductile
13 Magnetic
13.1 Magnetic Characteristics
13.1.1 Specific Gravity
Cobalt
1.85
Rank: 65 (Overall)
20.25
Rank: 6 (Overall)
Lithium
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13.1.2 Magnetic Ordering
Diamagnetic
Paramagnetic
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
Semiconductor
Conductor
13.2.2 Resistivity
Mercury
36.00 nΩ·m
Rank: 47 (Overall)
1.22 nΩ·m
Rank: 59 (Overall)
Thallium
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13.2.3 Electrical Conductivity
Silver
0.31 106/cm Ω
Rank: 5 (Overall)
0.01 106/cm Ω
Rank: 61 (Overall)
Plutonium
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13.2.4 Electron Affinity
Gold
0.00 kJ/mol
Rank: 40 (Overall)
Not Available
Rank: N/A (Overall)
Mercury
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14 Thermal
14.1 Specific Heat
Lithium
1.82 J/(kg K)
Rank: 2 (Overall)
0.12 J/(kg K)
Rank: 40 (Overall)
Americium
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14.2 Molar Heat Capacity
Americium
16.44 J/mol·K
Rank: 56 (Overall)
29.46 J/mol·K
Rank: 8 (Overall)
Beryllium
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14.3 Thermal Conductivity
Silver
200.00 W/m·K
Rank: 6 (Overall)
6.30 W/m·K
Rank: 70 (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
11.30 µm/(m·K)
Rank: 34 (Overall)
Not Available
Rank: N/A (Overall)
Tungsten
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14.6 Enthalpy
14.6.1 Enthalpy of Vaporization
Tungsten
294.70 kJ/mol
Rank: 30 (Overall)
Not Available
Rank: N/A (Overall)
Zinc
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14.6.2 Enthalpy of Fusion
Tungsten
11.72 kJ/mol
Rank: 30 (Overall)
3.20 kJ/mol
Rank: 56 (Overall)
Cesium
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14.6.3 Enthalpy of Atomization
Tungsten
326.40 kJ/mol
Rank: 30 (Overall)
Not Available
Rank: N/A (Overall)
Mercury
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14.7 Standard Molar Entropy
Protactinium
9.50 J/mol.K
Rank: 58 (Overall)
Not Available
Rank: N/A (Overall)
Beryllium
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