1 Periodic Table
1.1 Symbol
1.2 Group Number
1.4 Period Number
1.6 Block
1.7 Element Family
1.8 CAS Number
74407247440100
7429905
54386242
1.9 Space Group Name
1.10 Space Group Number
2 Facts
2.1 Interesting Facts
- Fermium metal is highly radioactive in nature.
- Fermium is synthetically produced metal.
- Praseodymium metal is synthetically produced metal.
- Praseodymium is used as possible fuel for radioactive generators.
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
Not Available
2.3.2 Discovery
2.4 Abundance
2.4.1 Abundance In Universe
2.5.2 Abundance In Sun
~-9999 %~0.0000001 %
1E-08
0.1
2.6.2 Abundance In Meteorites
2.6.5 Abundance In Earth's Crust
3.2.2 Abundance In Oceans
3.3.2 Abundance In Humans
4 Uses
4.1 Uses & Benefits
- Currently known uses of Fermium metal are limited to research purpose only.
- The main use of Praseodymium include alloys. Praseodymium –Magnesium alloy is used in aircraft engines due to its high strength.
-
This metal is also used while making a permanent magnets.
4.1.1 Industrial Uses
4.1.2 Medical Uses
4.1.3 Other Uses
4.2 Biological Properties
4.2.1 Toxicity
4.2.2 Present in Human Body
4.2.3 In Blood
0.00 Blood/mg dm-3NA
0
1970
4.2.5 In Bone
5 Physical
5.1 Melting Point
1,527.00 °C935.00 °C
27
3410
5.2 Boiling Point
5.4 Appearance
5.4.1 Physical State
5.4.2 Color
5.4.3 Luster
5.5 Hardness
5.5.1 Mohs Hardness
5.6.4 Brinell Hardness
5.6.7 Vickers Hardness
5.7 Speed of Sound
5.8 Optical Properties
5.8.1 Refractive Index
5.8.4 Reflectivity
5.9 Allotropes
5.9.1 α Allotropes
Not Available
Not Available
5.9.2 β Allotropes
Not Available
Not Available
5.9.3 γ Allotropes
Not Available
Not Available
6 Chemical
6.1 Chemical Formula
6.2 Isotopes
6.2.1 Known Isotopes
6.5 Electronegativity
6.5.1 Pauling Electronegativity
7.1.1 Sanderson Electronegativity
7.4.4 Allred Rochow Electronegativity
7.4.7 Mulliken-Jaffe Electronegativity
7.5.4 Allen Electronegativity
7.7 Electropositivity
7.7.1 Pauling Electropositivity
7.9 Ionization Energies
7.9.1 1st Energy Level
627.00 kJ/mol527.00 kJ/mol
375.7
26130
7.11.1 2nd Energy Level
1,225.00 kJ/mol1,020.00 kJ/mol
710.2162
28750
1.2.2 3rd Energy Level
2,363.00 kJ/mol2,086.00 kJ/mol
1600
34230
1.4.1 4th Energy Level
3,792.00 kJ/mol3,761.00 kJ/mol
2780
37066
2.2.3 5th Energy Level
NA5,551.00 kJ/mol
4305.2
97510
2.2.6 6th Energy Level
2.3.2 7th Energy level
2.4.2 8th Energy Level
2.5.5 9th Energy Level
2.5.8 10th Energy Level
2.6.3 11th Energy Level
2.6.6 12th Energy Level
1.2.3 13th Energy Level
2.1.2 14th Energy Level
2.7.4 15th Energy Level
3.4.3 16th Energy Level
3.5.3 17th Energy Level
5.1.1 18th Energy Level
5.5.3 19th Energy Level
5.6.4 20th Energy Level
6.3.2 21st Energy Level
7.1.2 22nd Energy Level
7.3.2 23rd Energy Level
7.5.3 24th Energy Level
7.6.6 25th Energy Level
7.7.1 26th Energy Level
7.7.5 27th Energy Level
7.9.1 28th Energy Level
7.10.3 29th Energy Level
8.2.2 30th Energy Level
8.3 Electrochemical Equivalent
3.20 g/amp-hr1.75 g/amp-hr
0.16812
8.3209
8.7 Electron Work Function
8.9 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Anti Corrosion, Ionization, Radioactive Isotopes
9 Atomic
9.1 Atomic Number
10.2 Electron Configuration
[Rn] 5f12 7s2
[Xe] 4f3 6s2
10.3 Crystal Structure
Not Known
Hexagonal Close Packed (HCP)
10.3.1 Crystal Lattice
10.4 Atom
10.4.1 Number of Protons
10.4.6 Number of Neutrons
10.6.1 Number of Electrons
10.9 Radius of an Atom
10.9.1 Atomic Radius
10.10.4 Covalent Radius
10.10.8 Van der Waals Radius
245.00 pm239.00 pm
139
348
10.11 Atomic Weight
257.00 amu140.91 amu
6.94
294
10.13 Atomic Volume
NA20.80 cm3/mol
1.39
71.07
10.14 Adjacent Atomic Numbers
10.14.1 Previous Element
10.14.2 Next Element
10.15 Valence Electron Potential
10.17 Lattice Constant
NA367.25 pm
228.58
891.25
10.19 Lattice Angles
10.20 Lattice C/A Ratio
11 Mechanical
11.1 Density
11.1.1 Density At Room Temperature
12.1.4 Density When Liquid (at m.p.)
12.3 Tensile Strength
12.5 Viscosity
12.6 Vapor Pressure
12.6.1 Vapor Pressure at 1000 K
12.6.4 Vapor Pressure at 2000 K
NA13.20 (Pa)
2.62E-10
774
12.7 Elasticity properties
12.7.1 Shear Modulus
13.1.1 Bulk Modulus
13.2.2 Young's Modulus
13.4 Poisson Ratio
13.6 Other Mechanical Properties
14 Magnetic
14.1 Magnetic Characteristics
14.1.1 Specific Gravity
14.1.3 Magnetic Ordering
14.1.4 Permeability
14.2.2 Susceptibility
14.4 Electrical Properties
14.4.1 Electrical Property
14.4.2 Resistivity
14.4.5 Electrical Conductivity
NA0.01 106/cm Ω
0.00666
0.63
14.4.8 Electron Affinity
15 Thermal
15.1 Specific Heat
15.2 Molar Heat Capacity
NA27.20 J/mol·K
16.443
62.7
15.3 Thermal Conductivity
15.4 Critical Temperature
15.7 Thermal Expansion
16.2 Enthalpy
16.2.1 Enthalpy of Vaporization
NA296.80 kJ/mol
7.32
799.1
16.5.3 Enthalpy of Fusion
16.5.5 Enthalpy of Atomization
16.7 Standard Molar Entropy
NA73.20 J/mol.K
9.5
198.1