1 Periodic Table
1.1 Symbol
1.2 Group Number
1.3 Period Number
1.4 Block
1.5 Element Family
1.7 CAS Number
74407247440735
7429905
54386242
1.8 Space Group Name
Not Available
Not Available
1.9 Space Group Number
2 Facts
2.1 Interesting Facts
- Fermium metal is highly radioactive in nature.
- Fermium is synthetically produced metal.
- 223 Francium has the longest half life at 21.8.
- Francium metal is produced by alpha decay in 227Actinium 227.
2.2 Sources
Bombarding Pu-239 with Neutrons
Formed by Decay Process, Mining
2.3 History
2.3.1 Who Discovered
Lawrence Berkeley National Laboratory
Marguerite Perey
2.3.2 Discovery
2.4 Abundance
2.4.1 Abundance In Universe
2.6.1 Abundance In Sun
~-9999 %~-9999 %
1E-08
0.1
2.6.2 Abundance In Meteorites
3.3.3 Abundance In Earth's Crust
3.4.3 Abundance In Oceans
3.4.5 Abundance In Humans
4 Uses
4.1 Uses & Benefits
- Currently known uses of Fermium metal are limited to research purpose only.
- Francium has no known uses as it has a half life of only 22 minutes.
4.1.2 Industrial Uses
4.1.3 Medical Uses
4.1.4 Other Uses
4.2 Biological Properties
4.2.1 Toxicity
4.2.3 Present in Human Body
4.2.4 In Blood
0.00 Blood/mg dm-30.00 Blood/mg dm-3
0
1970
4.2.6 In Bone
0.00 p.p.m.0.00 p.p.m.
0
170000
5 Physical
5.1 Melting Point
1,527.00 °C27.00 °C
27
3410
5.2 Boiling Point
5.3 Appearance
5.3.1 Physical State
5.3.2 Color
5.3.3 Luster
5.4 Hardness
5.4.1 Mohs Hardness
6.2.5 Brinell Hardness
7.1.1 Vickers Hardness
7.2 Speed of Sound
7.4 Optical Properties
7.4.1 Refractive Index
7.6.3 Reflectivity
7.7 Allotropes
7.7.1 α Allotropes
Not Available
Not Available
7.7.2 β Allotropes
Not Available
Not Available
7.7.3 γ Allotropes
Not Available
Not Available
8 Chemical
8.1 Chemical Formula
8.2 Isotopes
8.2.1 Known Isotopes
8.3 Electronegativity
8.3.1 Pauling Electronegativity
8.3.4 Sanderson Electronegativity
8.4.2 Allred Rochow Electronegativity
8.5.2 Mulliken-Jaffe Electronegativity
8.5.6 Allen Electronegativity
9.3 Electropositivity
9.3.1 Pauling Electropositivity
9.5 Ionization Energies
9.5.1 1st Energy Level
627.00 kJ/mol380.00 kJ/mol
375.7
26130
9.5.3 2nd Energy Level
1,225.00 kJ/molNA
710.2162
28750
9.5.6 3rd Energy Level
2,363.00 kJ/molNA
1600
34230
9.5.10 4th Energy Level
3,792.00 kJ/molNA
2780
37066
9.5.13 5th Energy Level
9.5.15 6th Energy Level
9.6.1 7th Energy level
9.7.2 8th Energy Level
9.9.2 9th Energy Level
10.1.1 10th Energy Level
10.1.3 11th Energy Level
10.4.2 12th Energy Level
10.4.5 13th Energy Level
10.4.7 14th Energy Level
10.4.10 15th Energy Level
10.5.2 16th Energy Level
10.5.4 17th Energy Level
10.5.7 18th Energy Level
10.5.9 19th Energy Level
10.6.2 20th Energy Level
10.6.3 21st Energy Level
10.6.4 22nd Energy Level
10.7.1 23rd Energy Level
10.7.2 24th Energy Level
10.7.3 25th Energy Level
10.9.1 26th Energy Level
10.9.2 27th Energy Level
10.10.1 28th Energy Level
10.10.3 29th Energy Level
10.12.2 30th Energy Level
11.2 Electrochemical Equivalent
3.20 g/amp-hr8.32 g/amp-hr
0.16812
8.3209
11.3 Electron Work Function
11.4 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Ionization, Radioactive Isotopes, Radioactivity, Solubility
12 Atomic
12.1 Atomic Number
12.3 Electron Configuration
12.4 Crystal Structure
Not Known
Body Centered Cubic (BCC)
12.4.1 Crystal Lattice
12.5 Atom
12.5.1 Number of Protons
12.7.3 Number of Neutrons
12.7.6 Number of Electrons
12.9 Radius of an Atom
12.9.1 Atomic Radius
12.9.3 Covalent Radius
12.9.5 Van der Waals Radius
245.00 pm348.00 pm
139
348
12.10 Atomic Weight
257.00 amu223.00 amu
6.94
294
12.11 Atomic Volume
12.12 Adjacent Atomic Numbers
12.12.1 Previous Element
12.12.2 Next Element
12.13 Valence Electron Potential
12.16 Lattice Constant
13.2 Lattice Angles
13.3 Lattice C/A Ratio
14 Mechanical
14.1 Density
14.1.1 Density At Room Temperature
15.1.2 Density When Liquid (at m.p.)
15.6 Tensile Strength
15.7 Viscosity
15.8 Vapor Pressure
15.8.1 Vapor Pressure at 1000 K
15.8.4 Vapor Pressure at 2000 K
15.10 Elasticity properties
15.10.1 Shear Modulus
16.1.2 Bulk Modulus
16.2.2 Young's Modulus
16.5 Poisson Ratio
16.8 Other Mechanical Properties
17 Magnetic
17.1 Magnetic Characteristics
17.1.1 Specific Gravity
17.3.1 Magnetic Ordering
17.4.1 Permeability
17.4.2 Susceptibility
17.7 Electrical Properties
17.7.1 Electrical Property
17.7.2 Resistivity
18.1.2 Electrical Conductivity
NA0.03 106/cm Ω
0.00666
0.63
18.1.5 Electron Affinity
19 Thermal
19.1 Specific Heat
19.3 Molar Heat Capacity
19.6 Thermal Conductivity
19.7 Critical Temperature
19.9 Thermal Expansion
19.10 Enthalpy
19.10.1 Enthalpy of Vaporization
19.10.3 Enthalpy of Fusion
19.11.1 Enthalpy of Atomization
20.2 Standard Molar Entropy