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Nihonium vs Iridium


Iridium vs Nihonium


Periodic Table

Symbol
Nh   
Ir   

Group Number
13   
5
9   
9

Period Number
7   
6   

Block
p block   
d block   

Element Family
Probably Post-​Transition   
Transition Metal   

CAS Number
54084707   
6
7439885   
99+

Space Group Name
Not Available   
Fm_ 3m   

Space Group Number
194.00   
5
225.00   
2

Facts

Interesting Facts
Not Available   
  • Iridium element occurs as natural alloys of Platinum and Osmium.
  • Iridium element is known as the most corrosion resistance metal .
  

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

History
  
  

Who Discovered
Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory   
Smithson Tennant   

Discovery
In 2003   
In 1803   

Abundance
  
  

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

Abundance In Sun
~-9999 %   
~0.0000002 %   
25

Abundance In Meteorites
Not Available   
0.00 %   
29

Abundance In Earth's Crust
Not Available   
0.00 %   
99+

Uses

Uses & Benefits
  • Currently known uses of Ununtrium metal are limited to research purpose only.
  
  • Iridium has an anti corrosion properties and it is used in special alloy with Osmium metal and that alloy is used in pen tips and compass bearings.
  

Industrial Uses
NA   
Automobile Industry, Electrical Industry, Electronic Industry   

Medical Uses
NA   
NA   

Other Uses
Research Purposes   
Alloys   

Biological Properties
  
  

Toxicity
Unknown   
Toxic   

Present in Human Body
No   
Yes   

Physical Properties

Melting Point
430.00 °C   
99+
2,410.00 °C   
7

Boiling Point
1,130.00 °C   
99+
4,527.00 °C   
10

Appearance
  
  

Physical State
Solid   
Solid   

Color
Unknown   
Silvery White   

Luster
Unknown Luster   
Metallic   

Hardness
  
  

Mohs Hardness
Not Available   
6.50   
5

Brinell Hardness
Not Available   
1,670.00 MPa   
5

Vickers Hardness
Not Available   
1,760.00 MPa   
3

Speed of Sound
Not Available   
4,825.00 m/s   
13

Optical Properties
  
  

Reflectivity
Not Available   
78.00 %   
6

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   
Ir   

Isotopes
  
  

Known Isotopes
7   
31
34   
5

Electronegativity
  
  

Pauling Electronegativity
Not Available   
2.20   
4

Allred Rochow Electronegativity
Not Available   
1.55   
11

Allen Electronegativity
Not Available   
1.68   
17

Electropositivity
  
  

Pauling Electropositivity
Not Available   
1.80   
99+

Ionization Energies
  
  

1st Energy Level
704.90 kJ/mol   
34
880.00 kJ/mol   
9

2nd Energy Level
2,238.50 kJ/mol   
7
1,600.00 kJ/mol   
35

3rd Energy Level
3,023.30 kJ/mol   
26
Not Available   

4th Energy Level
4,351.50 kJ/mol   
29
Not Available   

5th Energy Level
5,692.60 kJ/mol   
28
Not Available   

Electrochemical Equivalent
Not Available   
1.14 g/amp-hr   
99+

Electron Work Function
Not Available   
4.55 eV   
13

Other Chemical Properties
Chemical Stability, Ionization   
Flammable, Ionization, Radioactive Isotopes, Radioactivity   

Atomic Properties

Atomic Number
113   
5
77   
39

Electron Configuration
[Rn] 5f14 6d10 7s2 7p1   
[Xe] 4f14 5d7 6s2   

Crystal Structure
Not Known   
Face Centered Cubic (FCC)   

Crystal Lattice
Unknown-Crystal-Structure-of-Ununtrium.jpg#100   
FCC-Crystal-Structure-of-Iridium.jpg#100   

Atom
  
  

Number of Protons
113   
5
74   
99+

Number of Neutrons
150   
11
110   
27

Number of Electrons
113   
5
74   
99+

Radius of an Atom
  
  

Atomic Radius
Not Available   
136.00 pm   
99+

Covalent Radius
Not Available   
141.00 pm   
99+

Van der Waals Radius
Not Available   
202.00 pm   
27

Atomic Weight
286.00 amu   
4
192.22 amu   
34

Atomic Volume
Not Available   
9.53 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

Previous Element
Osmium
  

Next Element
Flerovium
  
Platinum
  

Valence Electron Potential
Not Available   
140.00 (-eV)   
5

Lattice Constant
Not Available   
383.90 pm   
26

Lattice Angles
NA   
π/2, π/2, π/2   

Lattice C/A Ratio
Not Available   
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
16.00 g/cm3   
19
22.56 g/cm3   
10

Density When Liquid (at m.p.)
Not Available   
19.00 g/cm3   
3

Tensile Strength
Not Available   
2,000.00 MPa   
2

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 2000 K
Not Available   
0.00 (Pa)   
25

Elasticity properties
  
  

Shear Modulus
Not Available   
210.00 GPa   
2

Bulk Modulus
Not Available   
320.00 GPa   
3

Young's Modulus
Not Available   
528.00 GPa   
1

Poisson Ratio
Not Available   
0.26   
22

Other Mechanical Properties
Unknown   
NA   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
Not Available   
21.78   
3

Magnetic Ordering
Unknown   
Paramagnetic   

Electrical Properties
  
  

Electrical Property
Unknown   
Conductor   

Resistivity
Not Available   
47.10 nΩ·m   
99+

Electrical Conductivity
Not Available   
0.19 106/cm Ω   
10

Electron Affinity
Not Available   
151.00 kJ/mol   
4

Thermal Properties

Specific Heat
Not Available   
0.13 J/(kg K)   
39

Molar Heat Capacity
Not Available   
25.10 J/mol·K   
99+

Thermal Conductivity
Not Available   
147.00 W/m·K   
10

Critical Temperature
Not Available   
Not Available   

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

Enthalpy
  
  

Enthalpy of Vaporization
Not Available   
799.10 kJ/mol   
1

Enthalpy of Fusion
Not Available   
35.23 kJ/mol   
1

Enthalpy of Atomization
Not Available   
837.00 kJ/mol   
1

Standard Molar Entropy
Not Available   
35.50 J/mol.K   
99+

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