1 Periodic Table
1.1 Symbol
1.2 Group Number
1.3 Period Number
1.4 Block
1.5 Element Family
Actinide
Probably Post-Transition
1.6 CAS Number
744072454101143
7429905
54386242
1.7 Space Group Name
Not Available
Not Available
1.8 Space Group Number
2 Facts
2.1 Interesting Facts
- Fermium metal is highly radioactive in nature.
- Fermium is synthetically produced metal.
Not Available
2.2 Sources
Bombarding Pu-239 with Neutrons
Synthetically Produced
2.3 History
2.3.1 Who Discovered
Lawrence Berkeley National Laboratory
Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory
2.3.2 Discovery
2.4 Abundance
2.4.1 Abundance In Universe
2.4.2 Abundance In Sun
~-9999 %~-9999 %
1E-08
0.1
1.2.1 Abundance In Meteorites
1.3.1 Abundance In Earth's Crust
1.6.1 Abundance In Oceans
1.6.2 Abundance In Humans
2 Uses
2.1 Uses & Benefits
- Currently known uses of Fermium metal are limited to research purpose only.
- Currently known uses of Ununseptium metal are limited to research purpose only.
2.1.1 Industrial Uses
2.1.2 Medical Uses
2.1.3 Other Uses
2.2 Biological Properties
2.2.1 Toxicity
2.2.2 Present in Human Body
2.2.3 In Blood
0.00 Blood/mg dm-3NA
0
1970
3.4.2 In Bone
4 Physical
4.1 Melting Point
1,527.00 °C400.00 °C
27
3410
4.2 Boiling Point
4.3 Appearance
4.3.1 Physical State
4.3.2 Color
4.3.3 Luster
Not Defined
Unknown Luster
4.4 Hardness
4.4.1 Mohs Hardness
4.4.2 Brinell Hardness
4.4.4 Vickers Hardness
4.5 Speed of Sound
4.6 Optical Properties
4.6.1 Refractive Index
5.2.4 Reflectivity
5.3 Allotropes
5.3.1 α Allotropes
Not Available
Not Available
5.3.2 β Allotropes
Not Available
Not Available
5.3.3 γ Allotropes
Not Available
Not Available
6 Chemical
6.1 Chemical Formula
6.2 Isotopes
6.2.1 Known Isotopes
7.2 Electronegativity
7.2.1 Pauling Electronegativity
7.2.2 Sanderson Electronegativity
7.2.3 Allred Rochow Electronegativity
7.3.1 Mulliken-Jaffe Electronegativity
7.5.2 Allen Electronegativity
7.6 Electropositivity
7.6.1 Pauling Electropositivity
7.7 Ionization Energies
7.7.1 1st Energy Level
627.00 kJ/mol742.90 kJ/mol
375.7
26130
7.7.3 2nd Energy Level
1,225.00 kJ/mol1,785.00 kJ/mol
710.2162
28750
7.8.1 3rd Energy Level
2,363.00 kJ/molNA
1600
34230
7.8.2 4th Energy Level
3,792.00 kJ/molNA
2780
37066
7.9.2 5th Energy Level
7.9.4 6th Energy Level
8.2.2 7th Energy level
8.2.3 8th Energy Level
8.3.2 9th Energy Level
8.3.3 10th Energy Level
8.3.5 11th Energy Level
8.3.7 12th Energy Level
8.3.9 13th Energy Level
8.3.11 14th Energy Level
8.3.12 15th Energy Level
8.4.2 16th Energy Level
8.5.3 17th Energy Level
8.5.5 18th Energy Level
8.5.7 19th Energy Level
8.5.9 20th Energy Level
8.5.11 21st Energy Level
8.5.13 22nd Energy Level
8.5.14 23rd Energy Level
8.5.16 24th Energy Level
8.5.18 25th Energy Level
8.5.19 26th Energy Level
8.5.21 27th Energy Level
8.5.22 28th Energy Level
8.5.24 29th Energy Level
8.5.26 30th Energy Level
8.6 Electrochemical Equivalent
3.20 g/amp-hrNA
0.16812
8.3209
8.7 Electron Work Function
8.8 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Chemical Stability, Ionization
9 Atomic
9.1 Atomic Number
9.2 Electron Configuration
[Rn] 5f12 7s2
[Rn] 5f14 6d10 7s2 7p5
9.3 Crystal Structure
9.3.1 Crystal Lattice
9.4 Atom
9.4.1 Number of Protons
9.4.4 Number of Neutrons
9.4.6 Number of Electrons
9.5 Radius of an Atom
9.5.1 Atomic Radius
9.5.3 Covalent Radius
9.5.6 Van der Waals Radius
9.6 Atomic Weight
257.00 amu294.00 amu
6.94
294
9.7 Atomic Volume
9.8 Adjacent Atomic Numbers
9.8.1 Previous Element
9.8.2 Next Element
9.9 Valence Electron Potential
9.10 Lattice Constant
9.11 Lattice Angles
9.12 Lattice C/A Ratio
10 Mechanical
10.1 Density
10.1.1 Density At Room Temperature
10.2.1 Density When Liquid (at m.p.)
10.3 Tensile Strength
10.4 Viscosity
10.6 Vapor Pressure
10.6.1 Vapor Pressure at 1000 K
10.6.2 Vapor Pressure at 2000 K
10.7 Elasticity properties
10.7.1 Shear Modulus
11.1.1 Bulk Modulus
11.1.2 Young's Modulus
11.2 Poisson Ratio
11.6 Other Mechanical Properties
12 Magnetic
12.1 Magnetic Characteristics
12.1.1 Specific Gravity
12.1.2 Magnetic Ordering
12.1.3 Permeability
12.1.4 Susceptibility
12.2 Electrical Properties
12.2.1 Electrical Property
12.2.2 Resistivity
12.2.3 Electrical Conductivity
12.2.5 Electron Affinity
13 Thermal
13.1 Specific Heat
13.2 Molar Heat Capacity
13.4 Thermal Conductivity
13.5 Critical Temperature
13.6 Thermal Expansion
13.8 Enthalpy
13.8.1 Enthalpy of Vaporization
13.9.1 Enthalpy of Fusion
13.11.1 Enthalpy of Atomization
13.13 Standard Molar Entropy