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
744010010028145
7429905
54386242
1.7 Space Group Name
1.8 Space Group Number
2 Facts
2.1 Interesting Facts
- Praseodymium metal is synthetically produced metal.
- Praseodymium is used as possible fuel for radioactive generators.
- The most stable isotope of Nobelium metal is No-259.
- No-259 has a half-life of fifty-eight minutes.
2.2 Sources
Found in Minerals, Mining, Ores of Minerals
Bombarding Curium-246 or Curium-249 with Carbon-12 Nuclei, Found in Minerals, Mining
2.3 History
2.3.1 Who Discovered
Not Available
Joint Institute for Nuclear Research
2.3.2 Discovery
2.4 Abundance
2.4.1 Abundance In Universe
2.4.2 Abundance In Sun
~0.0000001 %~-9999 %
1E-08
0.1
2.4.3 Abundance In Meteorites
2.4.4 Abundance In Earth's Crust
2.4.5 Abundance In Oceans
2.4.6 Abundance In Humans
3 Uses
3.1 Uses & Benefits
- 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.
- Currently known uses of Nobelium metal are limited to research purpose only.
3.1.1 Industrial Uses
3.1.2 Medical Uses
3.1.3 Other Uses
3.2 Biological Properties
3.2.1 Toxicity
3.2.2 Present in Human Body
3.2.3 In Blood
NA0.00 Blood/mg dm-3
0
1970
1.2.4 In Bone
2 Physical
2.1 Melting Point
935.00 °C827.00 °C
27
3410
1.3 Boiling Point
1.5 Appearance
1.5.1 Physical State
1.5.2 Color
1.5.3 Luster
1.6 Hardness
1.6.1 Mohs Hardness
1.9.1 Brinell Hardness
2.4.2 Vickers Hardness
2.5 Speed of Sound
2.6 Optical Properties
2.6.1 Refractive Index
2.6.3 Reflectivity
3.3 Allotropes
3.3.1 α Allotropes
Not Available
Not Available
3.3.2 β Allotropes
Not Available
Not Available
3.3.3 γ Allotropes
Not Available
Not Available
4 Chemical
4.1 Chemical Formula
4.2 Isotopes
4.2.1 Known Isotopes
5.2 Electronegativity
5.2.1 Pauling Electronegativity
5.5.2 Sanderson Electronegativity
5.5.5 Allred Rochow Electronegativity
5.6.1 Mulliken-Jaffe Electronegativity
5.7.3 Allen Electronegativity
6.4 Electropositivity
6.4.1 Pauling Electropositivity
6.5 Ionization Energies
6.5.1 1st Energy Level
527.00 kJ/mol642.00 kJ/mol
375.7
26130
6.5.4 2nd Energy Level
1,020.00 kJ/mol1,254.00 kJ/mol
710.2162
28750
6.5.6 3rd Energy Level
2,086.00 kJ/mol2,643.00 kJ/mol
1600
34230
6.7.2 4th Energy Level
3,761.00 kJ/mol3,956.00 kJ/mol
2780
37066
6.7.6 5th Energy Level
5,551.00 kJ/molNA
4305.2
97510
6.7.8 6th Energy Level
6.7.11 7th Energy level
6.7.14 8th Energy Level
6.7.16 9th Energy Level
6.7.19 10th Energy Level
6.7.21 11th Energy Level
6.7.24 12th Energy Level
6.7.28 13th Energy Level
6.7.31 14th Energy Level
6.7.35 15th Energy Level
6.7.39 16th Energy Level
6.7.42 17th Energy Level
6.8.1 18th Energy Level
6.9.1 19th Energy Level
7.1.1 20th Energy Level
7.4.2 21st Energy Level
7.4.3 22nd Energy Level
7.4.5 23rd Energy Level
7.4.6 24th Energy Level
7.4.8 25th Energy Level
7.4.9 26th Energy Level
7.5.2 27th Energy Level
7.5.4 28th Energy Level
7.5.6 29th Energy Level
7.5.7 30th Energy Level
7.7 Electrochemical Equivalent
1.75 g/amp-hr4.83 g/amp-hr
0.16812
8.3209
7.9 Electron Work Function
7.12 Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes
Ionization, Radioactive Isotopes, Radioactivity
8 Atomic
8.1 Atomic Number
8.3 Electron Configuration
[Xe] 4f3 6s2
[Rn] 5f14 7s2
8.4 Crystal Structure
Hexagonal Close Packed (HCP)
Not Known
8.4.1 Crystal Lattice
8.5 Atom
8.5.1 Number of Protons
8.7.1 Number of Neutrons
9.1.2 Number of Electrons
9.2 Radius of an Atom
9.2.1 Atomic Radius
9.3.1 Covalent Radius
9.4.1 Van der Waals Radius
239.00 pm246.00 pm
139
348
9.6 Atomic Weight
140.91 amu259.00 amu
6.94
294
9.8 Atomic Volume
20.80 cm3/molNA
1.39
71.07
9.9 Adjacent Atomic Numbers
9.9.1 Previous Element
9.9.2 Next Element
9.10 Valence Electron Potential
42.64 (-eV)26.00 (-eV)
8
392.42
9.11 Lattice Constant
367.25 pmNA
228.58
891.25
9.12 Lattice Angles
9.13 Lattice C/A Ratio
10 Mechanical
10.1 Density
10.1.1 Density At Room Temperature
11.1.2 Density When Liquid (at m.p.)
11.2 Tensile Strength
11.4 Viscosity
11.5 Vapor Pressure
11.5.1 Vapor Pressure at 1000 K
11.5.3 Vapor Pressure at 2000 K
13.20 (Pa)NA
2.62E-10
774
11.6 Elasticity properties
11.6.1 Shear Modulus
12.1.1 Bulk Modulus
12.2.1 Young's Modulus
12.4 Poisson Ratio
12.6 Other Mechanical Properties
Ductile, Malleable
Unknown
13 Magnetic
13.1 Magnetic Characteristics
13.1.1 Specific Gravity
13.2.1 Magnetic Ordering
13.2.2 Permeability
13.2.3 Susceptibility
13.4 Electrical Properties
13.4.1 Electrical Property
13.4.2 Resistivity
13.4.4 Electrical Conductivity
0.01 106/cm ΩNA
0.00666
0.63
13.4.6 Electron Affinity
14 Thermal
14.1 Specific Heat
14.2 Molar Heat Capacity
27.20 J/mol·KNA
16.443
62.7
14.3 Thermal Conductivity
14.4 Critical Temperature
14.5 Thermal Expansion
14.6 Enthalpy
14.6.1 Enthalpy of Vaporization
296.80 kJ/molNA
7.32
799.1
14.6.2 Enthalpy of Fusion
14.6.3 Enthalpy of Atomization
14.7 Standard Molar Entropy
73.20 J/mol.KNA
9.5
198.1