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Nihonium Praseodymium Comparison


Praseodymium Nihonium comparison


Periodic Table

Symbol
Nh   
Pr   

Group Number
13   
5
Not Available   

Period Number
7   
6   

Block
p block   
f block   

Element Family
Probably Post-​Transition   
Lanthanide   

CAS Number
54084707   
6
7440100   
99+

Space Group Name
Not Available   
P63/mmc   

Space Group Number
194.00   
5
194.00   
5

Facts

Interesting Facts
Not Available   
  • Praseodymium metal is synthetically produced metal.
  • Praseodymium is used as possible fuel for radioactive generators.
  

Sources
Synthetically Produced   
Found in Minerals, Mining, Ores of Minerals   

History
  
  

Who Discovered
Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory   
Not Available   

Discovery
In 2003   
In 1885   

Abundance
  
  

Abundance In Universe
Not Available   
2 * 10-7 %   
22

Abundance In Sun
~-9999 %   
~0.0000001 %   
26

Abundance In Meteorites
Not Available   
0.00 %   
40

Abundance In Earth's Crust
Not Available   
0.00 %   
27

Abundance In Oceans
Not Available   
0.00 %   
39

Uses

Uses & Benefits
  • Currently known uses of Ununtrium 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.
  

Industrial Uses
NA   
Chemical Industry   

Medical Uses
NA   
NA   

Other Uses
Research Purposes   
Alloys   

Biological Properties
  
  

Toxicity
Unknown   
Moderately Toxic   

Present in Human Body
No   
No   

Physical Properties

Melting Point
430.00 °C   
99+
935.00 °C   
99+

Boiling Point
1,130.00 °C   
99+
3,130.00 °C   
27

Appearance
  
  

Physical State
Solid   
Solid   

Color
Unknown   
Grayish White   

Luster
Unknown Luster   
Metallic   

Hardness
  
  

Brinell Hardness
Not Available   
481.00 MPa   
24

Vickers Hardness
Not Available   
400.00 MPa   
25

Speed of Sound
Not Available   
2,280.00 m/s   
40

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
Nh   
Pr   

Isotopes
  
  

Known Isotopes
7   
31
31   
8

Electronegativity
  
  

Pauling Electronegativity
Not Available   
1.13   
99+

Allred Rochow Electronegativity
Not Available   
1.07   
32

Electropositivity
  
  

Pauling Electropositivity
Not Available   
2.87   
12

Ionization Energies
  
  

1st Energy Level
704.90 kJ/mol   
34
527.00 kJ/mol   
99+

2nd Energy Level
2,238.50 kJ/mol   
7
1,020.00 kJ/mol   
99+

3rd Energy Level
3,023.30 kJ/mol   
26
2,086.00 kJ/mol   
99+

4th Energy Level
4,351.50 kJ/mol   
29
3,761.00 kJ/mol   
99+

5th Energy Level
5,692.60 kJ/mol   
28
5,551.00 kJ/mol   
29

Electrochemical Equivalent
Not Available   
1.75 g/amp-hr   
40

Electron Work Function
Not Available   
2.70 eV   
99+

Other Chemical Properties
Chemical Stability, Ionization   
Anti Corrosion, Ionization, Radioactive Isotopes   

Atomic Properties

Atomic Number
113   
5
59   
99+

Electron Configuration
[Rn] 5f14 6d10 7s2 7p1   
[Xe] 4f3 6s2   

Crystal Structure
Not Known   
Hexagonal Close Packed (HCP)   

Crystal Lattice
Unknown-Crystal-Structure-of-Ununtrium.jpg#100   
HCP-Crystal-Structure-of-Praseodymium.jpg#100   

Atom
  
  

Number of Protons
113   
5
59   
99+

Number of Neutrons
150   
11
82   
99+

Number of Electrons
113   
5
59   
99+

Radius of an Atom
  
  

Atomic Radius
Not Available   
182.00 pm   
11

Covalent Radius
Not Available   
203.00 pm   
9

Van der Waals Radius
Not Available   
239.00 pm   
14

Atomic Weight
286.00 amu   
4
140.91 amu   
99+

Atomic Volume
Not Available   
20.80 cm3/mol   
15

Adjacent Atomic Numbers
  
  

Previous Element
Cerium
  

Next Element
Flerovium
  
Neodymium
  

Valence Electron Potential
Not Available   
42.64 (-eV)   
99+

Lattice Constant
Not Available   
367.25 pm   
29

Lattice Angles
NA   
π/2, π/2, 2 π/3   

Lattice C/A Ratio
Not Available   
1.61   
4

Mechanical Properties

Density
  
  

Density At Room Temperature
16.00 g/cm3   
19
6.77 g/cm3   
99+

Density When Liquid (at m.p.)
Not Available   
6.50 g/cm3   
39

Tensile Strength
Not Available   
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 1000 K
Not Available   
0.00 (Pa)   
25

Vapor Pressure at 2000 K
Not Available   
13.20 (Pa)   
7

Elasticity properties
  
  

Shear Modulus
Not Available   
14.80 GPa   
39

Bulk Modulus
Not Available   
28.80 GPa   
40

Young's Modulus
Not Available   
37.30 GPa   
99+

Poisson Ratio
Not Available   
0.28   
16

Other Mechanical Properties
Unknown   
Ductile, Malleable   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
Not Available   
6.77   
99+

Magnetic Ordering
Unknown   
Paramagnetic   

Electrical Properties
  
  

Electrical Property
Unknown   
Conductor   

Resistivity
Not Available   
0.70 nΩ·m   
99+

Electrical Conductivity
Not Available   
0.01 106/cm Ω   
99+

Electron Affinity
Not Available   
50.00 kJ/mol   
21

Thermal Properties

Specific Heat
Not Available   
0.19 J/(kg K)   
32

Molar Heat Capacity
Not Available   
27.20 J/mol·K   
18

Thermal Conductivity
Not Available   
12.50 W/m·K   
99+

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
Not Available   
6.70 µm/(m·K)   
99+

Enthalpy
  
  

Enthalpy of Vaporization
Not Available   
296.80 kJ/mol   
29

Enthalpy of Fusion
Not Available   
6.89 kJ/mol   
99+

Enthalpy of Atomization
Not Available   
368.00 kJ/mol   
24

Standard Molar Entropy
Not Available   
73.20 J/mol.K   
10

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