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Praseodymium vs Copernicium

Praseodymium
Copernicium
Copernicium vs Praseodymium


Periodic Table
Symbol
Pr   
Cn   
Group Number
Not Available   
12   
6
Period Number
6   
7   
Block
f block   
d block   
Element Family
Lanthanide   
Transition Metal   
CAS Number
7440100   
99+
54084263   
7
Space Group Name
P63/mmc   
Not Available   
Space Group Number
194.00   
5
Not Available   
Facts
Interesting Facts
  • Praseodymium metal is synthetically produced metal.
  • Praseodymium is used as possible fuel for radioactive generators.
  
Not Available   
Sources
Found in Minerals, Mining, Ores of Minerals   
Synthetically Produced   
History
  
  
Who Discovered
Not Available   
Gesellschaft für Schwerionenforschung   
Discovery
In 1885   
In 1996   
Abundance
  
  
Abundance In Universe
2 * 10-7 %   
22
Not Available   
Abundance In Sun
~0.0000001 %   
26
~-9999 %   
Abundance In Meteorites
0.00 %   
40
Not Available   
Abundance In Earth's Crust
0.00 %   
27
Not Available   
Abundance In Oceans
0.00 %   
39
Not Available   
Uses
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 Copernicium metal are limited to research purpose only.
  
Industrial Uses
Chemical Industry   
NA   
Medical Uses
NA   
NA   
Other Uses
Alloys   
Research Purposes   
Biological Properties
  
  
Toxicity
Moderately Toxic   
Unknown   
Present in Human Body
No   
No   
Physical Properties
Melting Point
935.00 °C   
99+
Not Available   
Boiling Point
3,130.00 °C   
27
Not Available   
Appearance
  
  
Physical State
Solid   
Solid   
Color
Grayish White   
Unknown   
Luster
Metallic   
Unknown Luster   
Hardness
  
  
Brinell Hardness
481.00 MPa   
24
Not Available   
Vickers Hardness
400.00 MPa   
25
Not Available   
Speed of Sound
2,280.00 m/s   
40
Not Available   
Optical Properties
  
  
Allotropes
No   
No   
α Allotropes
Not Available   
Not Available   
β Allotropes
Not Available   
Not Available   
γ Allotropes
Not Available   
Not Available   
Chemical Properties
Chemical Formula
Pr   
Cn   
Isotopes
  
  
Known Isotopes
31   
8
1   
34
Electronegativity
  
  
Pauling Electronegativity
1.13   
99+
Not Available   
Allred Rochow Electronegativity
1.07   
32
Not Available   
Electropositivity
  
  
Pauling Electropositivity
2.87   
12
Not Available   
Ionization Energies
  
  
1st Energy Level
527.00 kJ/mol   
99+
1,154.90 kJ/mol   
2
2nd Energy Level
1,020.00 kJ/mol   
99+
2,170.00 kJ/mol   
9
3rd Energy Level
2,086.00 kJ/mol   
99+
4,245.40 kJ/mol   
9
4th Energy Level
3,761.00 kJ/mol   
99+
5,499.70 kJ/mol   
14
5th Energy Level
5,551.00 kJ/mol   
29
Not Available   
Electrochemical Equivalent
1.75 g/amp-hr   
40
Not Available   
Electron Work Function
2.70 eV   
99+
Not Available   
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes   
Ionization, Radioactive Isotopes, Radioactivity   
Atomic Properties
Atomic Number
59   
99+
112   
6
Electron Configuration
[Xe] 4f3 6s2   
[Rn] 5f14 6d10 7s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
HCP-Crystal-Structure-of-Praseodymium.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
59   
99+
112   
6
Number of Neutrons
82   
99+
Not Available   
Number of Electrons
59   
99+
112   
6
Radius of an Atom
  
  
Atomic Radius
182.00 pm   
11
147.00 pm   
34
Covalent Radius
203.00 pm   
9
122.00 pm   
99+
Van der Waals Radius
239.00 pm   
14
Not Available   
Atomic Weight
140.91 amu   
99+
285.00 amu   
5
Atomic Volume
20.80 cm3/mol   
15
Not Available   
Adjacent Atomic Numbers
  
  
Previous Element
Cerium
  
Roentgenium
  
Next Element
Neodymium
  
Nihonium
  
Valence Electron Potential
42.64 (-eV)   
99+
Not Available   
Lattice Constant
367.25 pm   
29
Not Available   
Lattice Angles
π/2, π/2, 2 π/3   
NA   
Lattice C/A Ratio
1.61   
4
Not Available   
Mechanical Properties
Density
  
  
Density At Room Temperature
6.77 g/cm3   
99+
23.70 g/cm3   
7
Density When Liquid (at m.p.)
6.50 g/cm3   
39
Not Available   
Tensile Strength
Not Available   
Not Available   
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)   
25
Not Available   
Vapor Pressure at 2000 K
13.20 (Pa)   
7
Not Available   
Elasticity properties
  
  
Shear Modulus
14.80 GPa   
39
Not Available   
Bulk Modulus
28.80 GPa   
40
Not Available   
Young's Modulus
37.30 GPa   
99+
Not Available   
Poisson Ratio
0.28   
16
Not Available   
Other Mechanical Properties
Ductile, Malleable   
Unknown   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
6.77   
99+
Not Available   
Magnetic Ordering
Paramagnetic   
Unknown   
Electrical Properties
  
  
Electrical Property
Conductor   
Unknown   
Resistivity
0.70 nΩ·m   
99+
Not Available   
Electrical Conductivity
0.01 106/cm Ω   
99+
Not Available   
Electron Affinity
50.00 kJ/mol   
21
Not Available   
Thermal Properties
Specific Heat
0.19 J/(kg K)   
32
Not Available   
Molar Heat Capacity
27.20 J/mol·K   
18
Not Available   
Thermal Conductivity
12.50 W/m·K   
99+
Not Available   
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
6.70 µm/(m·K)   
99+
Not Available   
Enthalpy
  
  
Enthalpy of Vaporization
296.80 kJ/mol   
29
Not Available   
Enthalpy of Fusion
6.89 kJ/mol   
99+
Not Available   
Enthalpy of Atomization
368.00 kJ/mol   
24
Not Available   
Standard Molar Entropy
73.20 J/mol.K   
10
Not Available   
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