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Fermium
Fermium

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Fermium
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Fermium Curium Comparison

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1 Periodic Table
1.1 Symbol
Fm
Cm
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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1.5 Block
f block
f block
1.6 Element Family
Actinide
Actinide
1.7 CAS Number
Roentgenium Met..
7440724
Rank: 19 (Overall)
7440519
Rank: 36 (Overall)
Aluminium Metal
1.8 Space Group Name
Not Available
Not Available
1.9 Space Group Number
Sodium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Plutonium Metal
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2 Facts
2.1 Interesting Facts
  • Fermium metal is highly radioactive in nature.
  • Fermium is synthetically produced metal.
  • Curium metal does not occur free in nature.
  • Curium metal is a synthetically produced metal.
2.2 Sources
Bombarding Pu-239 with Neutrons
Bombarding Plutonium with Helium Ions
2.3 History
2.3.1 Who Discovered
Lawrence Berkeley National Laboratory
Glenn T. Seaborg, Ralph A. James, Albert Ghiorso
2.3.2 Discovery
In 1952
In 1944
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
2.5.1 Abundance In Sun
Iron Metal
~-9999 %
Rank: N/A (Overall)
~-9999 %
Rank: N/A (Overall)
Beryllium Metal
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2.6.1 Abundance In Meteorites
Iron Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Gold Metal
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3.2.3 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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3.3.2 Abundance In Oceans
Sodium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Protactinium Metal
3.3.5 Abundance In Humans
Calcium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Radium Metal
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4 Uses
4.1 Uses & Benefits
  • Currently known uses of Fermium metal are limited to research purpose only.
  • Curium metal is used to provide power to electrical equipment for space missions.
4.1.1 Industrial Uses
NA
NA
4.1.2 Medical Uses
NA
NA
4.1.3 Other Uses
NA
Research Purposes
4.2 Biological Properties
4.2.1 Toxicity
Unknown
Unknown
4.2.2 Present in Human Body
7% Actinide Series Metals have it !
7% Actinide Series Metals have it !
4.2.3 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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5.1.1 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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6 Physical
6.1 Melting Point
Tungsten Metal
1,527.00 °C
Rank: 26 (Overall)
1,340.00 °C
Rank: 34 (Overall)
Francium Metal
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6.2 Boiling Point
Tungsten Metal
Not Available
Rank: N/A (Overall)
3,110.00 °C
Rank: 30 (Overall)
Flerovium Metal
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6.4 Appearance
6.4.1 Physical State
Solid
Solid
6.4.2 Color
Unknown
Silver
6.4.3 Luster
Not Defined
Metallic
6.5 Hardness
6.5.1 Mohs Hardness
Chromium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Cesium Metal
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6.7.2 Brinell Hardness
Osmium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Cesium Metal
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6.8.1 Vickers Hardness
Tungsten Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Palladium Metal
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6.13 Speed of Sound
Technetium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Thallium Metal
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7.2 Optical Properties
7.2.1 Refractive Index
Palladium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Mercury Metal
7.2.3 Reflectivity
Silver Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
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7.5 Allotropes
No Actinide Series Metals has it !
No Actinide Series Metals has it !
7.5.1 α Allotropes
Not Available
Not Available
7.5.2 β Allotropes
Not Available
Not Available
7.5.3 γ Allotropes
Not Available
Not Available
8 Chemical
8.1 Chemical Formula
Fm
Cm
8.3 Isotopes
8.3.1 Known Isotopes
Palladium Metal
18
Rank: 21 (Overall)
15
Rank: 24 (Overall)
Tennessine Metal
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8.5 Electronegativity
8.5.1 Pauling Electronegativity
Gold Metal
1.30
Rank: 32 (Overall)
1.30
Rank: 32 (Overall)
Francium Metal
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8.7.1 Sanderson Electronegativity
Cobalt Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Cesium Metal
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9.1.3 Allred Rochow Electronegativity
Gallium Metal
1.20
Rank: 27 (Overall)
1.20
Rank: 27 (Overall)
Cesium Metal
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9.2.3 Mulliken-Jaffe Electronegativity
Polonium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Cesium Metal
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9.2.5 Allen Electronegativity
Berkelium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Cesium Metal
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9.5 Electropositivity
9.5.1 Pauling Electropositivity
Francium Metal
2.70
Rank: 22 (Overall)
2.70
Rank: 22 (Overall)
Gold Metal
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10.3 Ionization Energies
10.3.1 1st Energy Level
Chromium Metal
627.00 kJ/mol
Rank: 47 (Overall)
581.00 kJ/mol
Rank: 62 (Overall)
Cesium Metal
10.3.6 2nd Energy Level
Chromium Metal
1,225.00 kJ/mol
Rank: 58 (Overall)
1,196.00 kJ/mol
Rank: 61 (Overall)
Ruthenium Metal
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10.4.1 3rd Energy Level
Chromium Metal
2,363.00 kJ/mol
Rank: 54 (Overall)
2,026.00 kJ/mol
Rank: 72 (Overall)
Osmium Metal
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11.3.3 4th Energy Level
Chromium Metal
3,792.00 kJ/mol
Rank: 46 (Overall)
3,550.00 kJ/mol
Rank: 54 (Overall)
Thorium Metal
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12.1.1 5th Energy Level
Chromium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Dubnium Metal
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13.1.1 6th Energy Level
Chromium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Seaborgium Metal
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13.3.1 7th Energy level
Chromium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Bohrium Metal
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13.8.2 8th Energy Level
Chromium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Hassium Metal
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13.10.3 9th Energy Level
Chromium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Yttrium Metal
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13.10.6 10th Energy Level
Chromium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Strontium Metal
13.13.1 11th Energy Level
Magnesium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Yttrium Metal
13.13.4 12th Energy Level
Magnesium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
13.14.1 13th Energy Level
Titanium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
14.1.2 14th Energy Level
Vanadium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
14.1.4 15th Energy Level
Chromium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Manganese Metal
14.1.6 16th Energy Level
Manganese Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Iron Metal
14.2.2 17th Energy Level
Iron Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Cobalt Metal
14.2.5 18th Energy Level
Cobalt Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Nickel Metal
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14.2.7 19th Energy Level
Nickel Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Copper Metal
14.2.8 20th Energy Level
Zinc Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
15.1.1 21st Energy Level
Zinc Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
15.2.1 22nd Energy Level
Copper Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
15.2.2 23rd Energy Level
Copper Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
15.3.1 24th Energy Level
Iron Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
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15.4.1 25th Energy Level
Molybdenum Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
15.4.2 26th Energy Level
Molybdenum Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
15.5.1 27th Energy Level
Molybdenum Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
15.5.2 28th Energy Level
Molybdenum Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
15.6.1 29th Energy Level
Molybdenum Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
15.6.2 30th Energy Level
Molybdenum Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
15.7 Electrochemical Equivalent
Francium Metal
3.20 g/amp-hr
Rank: 13 (Overall)
3.07 g/amp-hr
Rank: 16 (Overall)
Beryllium Metal
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15.9 Electron Work Function
Platinum Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Cesium Metal
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15.10 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Ionization, Radioactive Isotopes
16 Atomic
16.1 Atomic Number
Tennessine Metal
100
Rank: 18 (Overall)
96
Rank: 22 (Overall)
Lithium Metal
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16.2 Electron Configuration
[Rn] 5f12 7s2
[Rn] 5f7 6d1 7s2
16.3 Crystal Structure
Not Known
Double Hexagonal Close Packed (DHCP)
16.3.1 Crystal Lattice
16.4 Atom
16.4.1 Number of Protons
Tennessine Metal
100
Rank: 18 (Overall)
96
Rank: 22 (Overall)
Lithium Metal
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16.4.3 Number of Neutrons
Flerovium Metal
157
Rank: 7 (Overall)
151
Rank: 10 (Overall)
Lithium Metal
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16.4.4 Number of Electrons
Tennessine Metal
100
Rank: 18 (Overall)
96
Rank: 22 (Overall)
Lithium Metal
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16.5 Radius of an Atom
16.5.1 Atomic Radius
Cesium Metal
Not Available
Rank: N/A (Overall)
174.00 pm
Rank: 20 (Overall)
Beryllium Metal
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16.5.2 Covalent Radius
Francium Metal
Not Available
Rank: N/A (Overall)
169.00 pm
Rank: 26 (Overall)
Beryllium Metal
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16.5.3 Van der Waals Radius
Francium Metal
245.00 pm
Rank: 9 (Overall)
200.00 pm
Rank: 28 (Overall)
Zinc Metal
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16.6 Atomic Weight
Tennessine Metal
257.00 amu
Rank: 15 (Overall)
247.00 amu
Rank: 18 (Overall)
Lithium Metal
16.7 Atomic Volume
Cesium Metal
Not Available
Rank: N/A (Overall)
18.28 cm3/mol
Rank: 26 (Overall)
Manganese Metal
16.8 Adjacent Atomic Numbers
16.8.1 Previous Element
16.8.2 Next Element
16.9 Valence Electron Potential
Platinum Metal
Not Available
Rank: N/A (Overall)
44.50 (-eV)
Rank: 38 (Overall)
Francium Metal
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16.10 Lattice Constant
Manganese Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Beryllium Metal
16.11 Lattice Angles
NA
NA
16.12 Lattice C/A Ratio
Cadmium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Beryllium Metal
17 Mechanical
17.1 Density
17.1.1 Density At Room Temperature
Hassium Metal
Not Available
Rank: N/A (Overall)
13.51 g/cm3
Rank: 25 (Overall)
Lithium Metal
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17.1.2 Density When Liquid (at m.p.)
Osmium Metal
Not Available
Rank: N/A (Overall)
13.85 g/cm3
Rank: 10 (Overall)
Lithium Metal
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17.2 Tensile Strength
Iron Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Indium Metal
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17.3 Viscosity
Mercury Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Mercury Metal
17.4 Vapor Pressure
17.4.1 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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17.4.2 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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17.5 Elasticity properties
17.5.1 Shear Modulus
Osmium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Potassium Metal
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17.5.2 Bulk Modulus
Osmium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Cesium Metal
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17.5.3 Young's Modulus
Iridium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Cesium Metal
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17.6 Poisson Ratio
Gallium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Beryllium Metal
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17.7 Other Mechanical Properties
NA
Unknown
18 Magnetic
18.1 Magnetic Characteristics
18.1.1 Specific Gravity
Cobalt Metal
Not Available
Rank: N/A (Overall)
13.51
Rank: 17 (Overall)
Lithium Metal
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18.1.2 Magnetic Ordering
Unknown
Antiferromagnetic
18.1.3 Permeability
Iron Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Bismuth Metal
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18.1.4 Susceptibility
Iron Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Bismuth Metal
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18.2 Electrical Properties
18.2.1 Electrical Property
Unknown
Unknown
18.2.2 Resistivity
Mercury Metal
Not Available
Rank: N/A (Overall)
1.25 nΩ·m
Rank: 58 (Overall)
Thallium Metal
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18.2.3 Electrical Conductivity
Silver Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Plutonium Metal
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18.2.4 Electron Affinity
Gold Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Mercury Metal
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19 Thermal
19.1 Specific Heat
Lithium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Americium Metal
19.2 Molar Heat Capacity
Americium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Beryllium Metal
19.3 Thermal Conductivity
Silver Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Neptunium Metal
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19.4 Critical Temperature
Lithium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Ytterbium Metal
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19.5 Thermal Expansion
Cesium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Tungsten Metal
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19.6 Enthalpy
19.6.1 Enthalpy of Vaporization
Tungsten Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Zinc Metal
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19.6.2 Enthalpy of Fusion
Tungsten Metal
Not Available
Rank: N/A (Overall)
15.00 kJ/mol
Rank: 21 (Overall)
Cesium Metal
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19.6.3 Enthalpy of Atomization
Tungsten Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Mercury Metal
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19.7 Standard Molar Entropy
Protactinium Me..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Beryllium Metal
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