1 Periodic Table
1.1 Symbol
1.2 Group Number
1.3 Period Number
1.4 Block
1.5 Element Family
1.6 CAS Number
74407247440199
7429905
54386242
1.7 Space Group Name
1.8 Space Group Number
2 Facts
2.1 Interesting Facts
- Fermium metal is highly radioactive in nature.
- Fermium is synthetically produced metal.
- Samarium metals helps stimulating body metabolism.
- Samarium metals was 1st observed by Jean Charles Galissard de Marignac in Dydimia in 1853.
2.2 Sources
Bombarding Pu-239 with Neutrons
Found in Minerals, Mining, Ores of Minerals
2.3 History
2.3.1 Who Discovered
Lawrence Berkeley National Laboratory
Lecoq de Boisbaudran
2.3.2 Discovery
2.4 Abundance
2.4.1 Abundance In Universe
3.1.1 Abundance In Sun
~-9999 %~0.0000001 %
1E-08
0.1
3.7.2 Abundance In Meteorites
4.4.2 Abundance In Earth's Crust
4.5.3 Abundance In Oceans
4.5.10 Abundance In Humans
6 Uses
6.1 Uses & Benefits
- Currently known uses of Fermium metal are limited to research purpose only.
- Magnets of Samarium cobalt alloy are stronger than that of Iron and hence, they are used in microwave application.
- Samarium metal also used in optical lasers and infrared absorbing glasses and as a neutron absorber.
6.1.1 Industrial Uses
NA
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
6.2.1 Medical Uses
6.2.2 Other Uses
NA
Alloys, In Nuclear Reactors
6.3 Biological Properties
6.3.1 Toxicity
6.3.2 Present in Human Body
6.3.3 In Blood
0.00 Blood/mg dm-30.01 Blood/mg dm-3
0
1970
7.1.1 In Bone
8 Physical
8.1 Melting Point
1,527.00 °C1,072.00 °C
27
3410
9.2 Boiling Point
9.6 Appearance
9.6.1 Physical State
9.6.2 Color
9.6.3 Luster
9.8 Hardness
9.8.1 Mohs Hardness
10.3.2 Brinell Hardness
10.4.9 Vickers Hardness
10.7 Speed of Sound
11.5 Optical Properties
11.5.1 Refractive Index
11.5.5 Reflectivity
12.3 Allotropes
12.3.1 α Allotropes
Not Available
Not Available
12.3.2 β Allotropes
Not Available
Not Available
12.3.3 γ Allotropes
Not Available
Not Available
13 Chemical
13.1 Chemical Formula
13.2 Isotopes
13.2.1 Known Isotopes
13.3 Electronegativity
13.3.1 Pauling Electronegativity
13.6.3 Sanderson Electronegativity
14.1.1 Allred Rochow Electronegativity
14.3.1 Mulliken-Jaffe Electronegativity
14.3.3 Allen Electronegativity
14.6 Electropositivity
14.7.1 Pauling Electropositivity
14.8 Ionization Energies
14.8.1 1st Energy Level
627.00 kJ/mol544.50 kJ/mol
375.7
26130
15.2.2 2nd Energy Level
1,225.00 kJ/mol1,070.00 kJ/mol
710.2162
28750
15.2.4 3rd Energy Level
2,363.00 kJ/mol2,260.00 kJ/mol
1600
34230
15.5.1 4th Energy Level
3,792.00 kJ/mol3,990.00 kJ/mol
2780
37066
15.6.3 5th Energy Level
15.6.6 6th Energy Level
15.6.9 7th Energy level
15.7.1 8th Energy Level
15.7.3 9th Energy Level
15.8.1 10th Energy Level
15.12.1 11th Energy Level
15.12.2 12th Energy Level
1.3.1 13th Energy Level
1.3.4 14th Energy Level
1.6.1 15th Energy Level
2.4.1 16th Energy Level
2.6.1 17th Energy Level
2.7.2 18th Energy Level
3.4.2 19th Energy Level
3.6.1 20th Energy Level
3.7.3 21st Energy Level
3.9.2 22nd Energy Level
4.1.2 23rd Energy Level
4.2.2 24th Energy Level
4.2.5 25th Energy Level
4.2.9 26th Energy Level
4.3.2 27th Energy Level
5.1.1 28th Energy Level
5.3.2 29th Energy Level
5.4.4 30th Energy Level
7.3 Electrochemical Equivalent
3.20 g/amp-hr1.87 g/amp-hr
0.16812
8.3209
7.7 Electron Work Function
8.2 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Ionization, Radioactive Isotopes
9 Atomic
9.1 Atomic Number
9.6 Electron Configuration
[Rn] 5f12 7s2
[Xe] 4f6 6s2
9.7 Crystal Structure
Not Known
Rhombohedral (RHO)
9.7.1 Crystal Lattice
9.8 Atom
9.8.1 Number of Protons
10.1.4 Number of Neutrons
11.4.3 Number of Electrons
11.7 Radius of an Atom
11.7.1 Atomic Radius
12.2.2 Covalent Radius
13.1.1 Van der Waals Radius
245.00 pm229.00 pm
139
348
13.7 Atomic Weight
257.00 amu150.36 amu
6.94
294
13.10 Atomic Volume
NA19.95 cm3/mol
1.39
71.07
14.3 Adjacent Atomic Numbers
14.3.1 Previous Element
14.3.2 Next Element
14.4 Valence Electron Potential
14.7 Lattice Constant
NA362.10 pm
228.58
891.25
14.10 Lattice Angles
14.11 Lattice C/A Ratio
15 Mechanical
15.1 Density
15.1.1 Density At Room Temperature
15.3.3 Density When Liquid (at m.p.)
15.5 Tensile Strength
15.7 Viscosity
15.8 Vapor Pressure
15.8.1 Vapor Pressure at 1000 K
16.1.2 Vapor Pressure at 2000 K
16.2 Elasticity properties
16.2.1 Shear Modulus
16.2.5 Bulk Modulus
16.3.5 Young's Modulus
16.4 Poisson Ratio
17.2 Other Mechanical Properties
18 Magnetic
18.1 Magnetic Characteristics
18.1.2 Specific Gravity
18.2.1 Magnetic Ordering
18.2.2 Permeability
18.3.1 Susceptibility
18.5 Electrical Properties
18.5.1 Electrical Property
18.5.2 Resistivity
18.6.1 Electrical Conductivity
NA0.01 106/cm Ω
0.00666
0.63
18.7.3 Electron Affinity
19 Thermal
19.1 Specific Heat
19.2 Molar Heat Capacity
NA29.54 J/mol·K
16.443
62.7
19.4 Thermal Conductivity
19.5 Critical Temperature
19.6 Thermal Expansion
19.7 Enthalpy
19.7.1 Enthalpy of Vaporization
NA166.40 kJ/mol
7.32
799.1
20.5.4 Enthalpy of Fusion
20.6.1 Enthalpy of Atomization
20.8 Standard Molar Entropy
NA69.60 J/mol.K
9.5
198.1