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Mendelevium
Mendelevium

Berkelium
Berkelium



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Mendelevium
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Berkelium

Mendelevium Berkelium Comparison

1 Periodic Table
1.1 Symbol
Md
Bk
1.2 Group Number
Tennessine Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Gadolinium Metal
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1.3 Period Number
Uranium Metal
7
Rank: 1 (Overall)
7
Rank: 1 (Overall)
Lithium Metal
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1.4 Block
f block
f block
1.5 Element Family
Actinide
Actinide
1.6 CAS Number
Roentgenium Met..
7440111
Rank: 68 (Overall)
7440406
Rank: 44 (Overall)
Aluminium Metal
1.7 Space Group Name
Not Available
P63/mmc
1.8 Space Group Number
Sodium Metal
Not Available
Rank: N/A (Overall)
194.00
Rank: 5 (Overall)
Plutonium Metal
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2 Facts
2.1 Interesting Facts
  • Mendelevium metal is synthetically produced metal.
  • Mendelevium metal has been produced in only trace amount.
  • X-ray Diffraction- different compounds of Berkelium metals are identified using it.
    Commercial uses of Berkelium metal are not yet discovered.
2.2 Sources
Bombarding Einsteinium with Helium Ions
Bombarding Americium with Alpha Particles.
2.3 History
2.3.1 Who Discovered
Lawrence Berkeley National Laboratory
Lawrence Berkeley National Laboratory
2.3.2 Discovery
In 1955
In 1949
2.4 Abundance
2.4.1 Abundance In Universe
Iron Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Thallium Metal
2.4.2 Abundance In Sun
Iron Metal
~-9999 %
Rank: N/A (Overall)
~-9999 %
Rank: N/A (Overall)
Beryllium Metal
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2.4.3 Abundance In Meteorites
Iron Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Gold Metal
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2.4.4 Abundance In Earth's Crust
Aluminium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Radium Metal
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2.4.5 Abundance In Oceans
Sodium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Protactinium Metal
2.4.6 Abundance In Humans
Calcium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Radium Metal
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3 Uses
3.1 Uses & Benefits
  • Currently known uses of Mendelevium metal are limited to research purpose only.
  • This metal is very rare and has no commercial uses.
3.1.1 Industrial Uses
NA
NA
3.1.2 Medical Uses
NA
NA
3.1.3 Other Uses
NA
NA
3.2 Biological Properties
3.2.1 Toxicity
Unknown
Unknown
3.2.2 Present in Human Body
7% Actinide Series Metals have it !
7% Actinide Series Metals have it !
3.2.3 In Blood
Sodium Metal
0.00 Blood/mg dm-3
Rank: 37 (Overall)
0.00 Blood/mg dm-3
Rank: 37 (Overall)
Plutonium Metal
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3.2.4 In Bone
Calcium Metal
0.00 p.p.m.
Rank: 36 (Overall)
0.00 p.p.m.
Rank: 36 (Overall)
Plutonium Metal
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4 Physical
4.1 Melting Point
Tungsten Metal
827.00 °C
Rank: 53 (Overall)
986.00 °C
Rank: 46 (Overall)
Francium Metal
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4.2 Boiling Point
Tungsten Metal
Not Available
Rank: N/A (Overall)
2,627.00 °C
Rank: 40 (Overall)
Flerovium Metal
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4.3 Appearance
4.3.1 Physical State
Solid
Solid
4.3.2 Color
Unknown
Silver
4.3.3 Luster
Metallic
Metallic
4.4 Hardness
4.4.1 Mohs Hardness
Chromium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Cesium Metal
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4.4.2 Brinell Hardness
Osmium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Cesium Metal
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4.4.3 Vickers Hardness
Tungsten Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Palladium Metal
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4.5 Speed of Sound
Technetium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Thallium Metal
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4.6 Optical Properties
4.6.1 Refractive Index
Palladium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Mercury Metal
4.6.2 Reflectivity
Silver Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
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4.7 Allotropes
No Actinide Series Metals has it !
No Actinide 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
Md
Bk
5.2 Isotopes
5.2.1 Known Isotopes
Palladium Metal
16
Rank: 23 (Overall)
14
Rank: 25 (Overall)
Tennessine Metal
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5.3 Electronegativity
5.3.1 Pauling Electronegativity
Gold Metal
1.30
Rank: 32 (Overall)
1.30
Rank: 32 (Overall)
Francium Metal
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5.3.2 Sanderson Electronegativity
Cobalt Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Cesium Metal
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5.3.3 Allred Rochow Electronegativity
Gallium Metal
1.20
Rank: 27 (Overall)
1.20
Rank: 27 (Overall)
Cesium Metal
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5.3.4 Mulliken-Jaffe Electronegativity
Polonium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Cesium Metal
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5.3.5 Allen Electronegativity
Berkelium Metal
Not Available
Rank: N/A (Overall)
2.70
Rank: 1 (Overall)
Cesium Metal
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5.4 Electropositivity
5.4.1 Pauling Electropositivity
Francium Metal
2.70
Rank: 22 (Overall)
2.70
Rank: 22 (Overall)
Gold Metal
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5.5 Ionization Energies
5.5.1 1st Energy Level
Chromium Metal
635.00 kJ/mol
Rank: 45 (Overall)
601.00 kJ/mol
Rank: 52 (Overall)
Cesium Metal
5.5.2 2nd Energy Level
Chromium Metal
1,235.00 kJ/mol
Rank: 57 (Overall)
1,186.00 kJ/mol
Rank: 62 (Overall)
Ruthenium Metal
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5.5.3 3rd Energy Level
Chromium Metal
2,470.00 kJ/mol
Rank: 47 (Overall)
2,152.00 kJ/mol
Rank: 66 (Overall)
Osmium Metal
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5.5.4 4th Energy Level
Chromium Metal
3,840.00 kJ/mol
Rank: 44 (Overall)
3,434.00 kJ/mol
Rank: 57 (Overall)
Thorium Metal
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5.5.5 5th Energy Level
Chromium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Dubnium Metal
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5.5.6 6th Energy Level
Chromium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Seaborgium Metal
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5.5.7 7th Energy level
Chromium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Bohrium Metal
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5.5.8 8th Energy Level
Chromium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Hassium Metal
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5.5.9 9th Energy Level
Chromium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Yttrium Metal
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5.5.10 10th Energy Level
Chromium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Strontium Metal
5.5.11 11th Energy Level
Magnesium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Yttrium Metal
5.5.12 12th Energy Level
Magnesium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.5.13 13th Energy Level
Titanium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.5.14 14th Energy Level
Vanadium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.5.15 15th Energy Level
Chromium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Manganese Metal
5.5.16 16th Energy Level
Manganese Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Iron Metal
5.5.17 17th Energy Level
Iron Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Cobalt Metal
5.5.18 18th Energy Level
Cobalt Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Nickel Metal
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5.5.19 19th Energy Level
Nickel Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Copper Metal
5.5.20 20th Energy Level
Zinc Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.5.21 21st Energy Level
Zinc Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.5.22 22nd Energy Level
Copper Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.5.23 23rd Energy Level
Copper Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.5.24 24th Energy Level
Iron Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
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5.5.25 25th Energy Level
Molybdenum Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.5.26 26th Energy Level
Molybdenum Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.5.27 27th Energy Level
Molybdenum Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.5.28 28th Energy Level
Molybdenum Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.5.29 29th Energy Level
Molybdenum Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.5.30 30th Energy Level
Molybdenum Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.6 Electrochemical Equivalent
Francium Metal
3.21 g/amp-hr
Rank: 12 (Overall)
3.07 g/amp-hr
Rank: 16 (Overall)
Beryllium Metal
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5.7 Electron Work Function
Platinum Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Cesium Metal
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5.8 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Ionization, Radioactive Isotopes, Radioactivity
6 Atomic
6.1 Atomic Number
Tennessine Metal
101
Rank: 17 (Overall)
97
Rank: 21 (Overall)
Lithium Metal
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6.2 Electron Configuration
[Rn] 5f13 7s2
[Rn] 5f9 7s2
6.3 Crystal Structure
Not Known
Double Hexagonal Close Packed (DHCP)
6.3.1 Crystal Lattice
6.4 Atom
6.4.1 Number of Protons
Tennessine Metal
101
Rank: 17 (Overall)
97
Rank: 21 (Overall)
Lithium Metal
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6.4.2 Number of Neutrons
Flerovium Metal
157
Rank: 7 (Overall)
150
Rank: 11 (Overall)
Lithium Metal
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6.4.3 Number of Electrons
Tennessine Metal
101
Rank: 17 (Overall)
97
Rank: 21 (Overall)
Lithium Metal
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6.5 Radius of an Atom
6.5.1 Atomic Radius
Cesium Metal
Not Available
Rank: N/A (Overall)
170.00 pm
Rank: 22 (Overall)
Beryllium Metal
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6.5.2 Covalent Radius
Francium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Beryllium Metal
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6.5.3 Van der Waals Radius
Francium Metal
246.00 pm
Rank: 8 (Overall)
Not Available
Rank: N/A (Overall)
Zinc Metal
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6.6 Atomic Weight
Tennessine Metal
258.00 amu
Rank: 14 (Overall)
247.00 amu
Rank: 18 (Overall)
Lithium Metal
6.7 Atomic Volume
Cesium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Manganese Metal
6.8 Adjacent Atomic Numbers
6.8.1 Previous Element
6.8.2 Next Element
6.9 Valence Electron Potential
Platinum Metal
Not Available
Rank: N/A (Overall)
45.50 (-eV)
Rank: 36 (Overall)
Francium Metal
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6.10 Lattice Constant
Manganese Metal
Not Available
Rank: N/A (Overall)
341.60 pm
Rank: 46 (Overall)
Beryllium Metal
6.11 Lattice Angles
NA
π/2, π/2, 2 π/3
6.12 Lattice C/A Ratio
Cadmium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Beryllium Metal
7 Mechanical
7.1 Density
7.1.1 Density At Room Temperature
Hassium Metal
Not Available
Rank: N/A (Overall)
14.78 g/cm3
Rank: 22 (Overall)
Lithium Metal
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7.1.2 Density When Liquid (at m.p.)
Osmium Metal
Not Available
Rank: N/A (Overall)
13.25 g/cm3
Rank: 11 (Overall)
Lithium Metal
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7.2 Tensile Strength
Iron Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Indium Metal
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7.3 Viscosity
Mercury Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Mercury Metal
7.4 Vapor Pressure
7.4.1 Vapor Pressure at 1000 K
Strontium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Cerium Metal
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7.4.2 Vapor Pressure at 2000 K
Chromium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Tungsten Metal
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7.5 Elasticity properties
7.5.1 Shear Modulus
Osmium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Potassium Metal
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7.5.2 Bulk Modulus
Osmium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Cesium Metal
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7.5.3 Young's Modulus
Iridium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Cesium Metal
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7.6 Poisson Ratio
Gallium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Beryllium Metal
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7.7 Other Mechanical Properties
Unknown
NA
8 Magnetic
8.1 Magnetic Characteristics
8.1.1 Specific Gravity
Cobalt Metal
Not Available
Rank: N/A (Overall)
14.00
Rank: 14 (Overall)
Lithium Metal
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8.1.2 Magnetic Ordering
Unknown
Paramagnetic
8.1.3 Permeability
Iron Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Bismuth Metal
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8.1.4 Susceptibility
Iron Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Bismuth Metal
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8.2 Electrical Properties
8.2.1 Electrical Property
Unknown
Conductor
8.2.2 Resistivity
Mercury Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Thallium Metal
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8.2.3 Electrical Conductivity
Silver Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Plutonium Metal
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8.2.4 Electron Affinity
Gold Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Mercury Metal
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9 Thermal
9.1 Specific Heat
Lithium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Americium Metal
9.2 Molar Heat Capacity
Americium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Beryllium Metal
9.3 Thermal Conductivity
Silver Metal
Not Available
Rank: N/A (Overall)
10.00 W/m·K
Rank: 65 (Overall)
Neptunium Metal
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9.4 Critical Temperature
Lithium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Ytterbium Metal
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9.5 Thermal Expansion
Cesium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Tungsten Metal
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9.6 Enthalpy
9.6.1 Enthalpy of Vaporization
Tungsten Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Zinc Metal
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9.6.2 Enthalpy of Fusion
Tungsten Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Cesium Metal
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9.6.3 Enthalpy of Atomization
Tungsten Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Mercury Metal
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9.7 Standard Molar Entropy
Protactinium Me..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Beryllium Metal
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