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Nihonium vs Iridium

Nihonium
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
-  
Fm_ 3m  
Space Group Number
194.00  
7
225.00  
3
Facts
Interesting Facts
Nihonium is a synthetic chemical element and is highly radioactive.  
  • 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
0.00 %  
40
0.00 %  
23
Abundance In Sun
-  
0.00 %  
25
Abundance In Meteorites
-  
0.00 %  
29
Abundance In Earth's Crust
-  
0.00 %  
99+
Abundance In Oceans
-  
-  
Abundance In Humans
-  
0.00 %  
24
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
-  
Automobile Industry, Electrical Industry, Electronic Industry  
Medical Uses
-  
-  
Other Uses
Research Purposes  
Alloys  
Biological Properties
  
  
Toxicity
-  
Toxic  
Present in Human Body
No  
Yes  
In Blood
0.00 Blood/mg dm-3  
29
0.00 Blood/mg dm-3  
40
In Bone
0.20 p.p.m.  
27
0.00 p.p.m.  
99+
Physical
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
-  
Silvery White  
Luster
Unknown Luster  
Metallic  
Hardness
  
  
Mohs Hardness
-  
6.50  
5
Brinell Hardness
600.00 MPa  
24
1,670.00 MPa  
5
Vickers Hardness
350.00 MPa  
99+
1,760.00 MPa  
8
Speed of Sound
3,600.00 m/s  
29
4,825.00 m/s  
17
Optical Properties
  
  
Refractive Index
1.30  
99+
2.40  
7
Reflectivity
60.00 %  
23
78.00 %  
8
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Nh  
Ir  
Isotopes
  
  
Known Isotopes
7  
31
34  
5
Electronegativity
  
  
Pauling Electronegativity
1.30  
33
2.20  
5
Sanderson Electronegativity
1.90  
13
2.20  
8
Allred Rochow Electronegativity
1.30  
25
1.55  
12
Mulliken-Jaffe Electronegativity
1.00  
99+
2.20  
6
Allen Electronegativity
0.70  
99+
1.68  
20
Electropositivity
  
  
Pauling Electropositivity
2.20  
39
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  
36
3rd Energy Level
3,023.30 kJ/mol  
26
2,256.10 kJ/mol  
99+
4th Energy Level
4,351.50 kJ/mol  
39
880.00 kJ/mol  
99+
5th Energy Level
5,692.60 kJ/mol  
99+
8,800.00 kJ/mol  
8
6th Energy Level
7,000.00 kJ/mol  
99+
8,800.00 kJ/mol  
25
7th Energy level
7,040.00 kJ/mol  
40
8,800.00 kJ/mol  
22
8th Energy Level
7,040.00 kJ/mol  
36
8,800.00 kJ/mol  
22
9th Energy Level
7,040.00 kJ/mol  
33
8,800.00 kJ/mol  
21
10th Energy Level
7,040.00 kJ/mol  
37
8,800.00 kJ/mol  
23
11th Energy Level
7,040.00 kJ/mol  
35
8,800.00 kJ/mol  
20
12th Energy Level
70,000.00 kJ/mol  
5
8,800.00 kJ/mol  
40
13th Energy Level
7,000.00 kJ/mol  
34
8,800.00 kJ/mol  
15
14th Energy Level
7,000.00 kJ/mol  
24
8,800.00 kJ/mol  
14
15th Energy Level
70,000.00 kJ/mol  
30
88,000.00 kJ/mol  
8
16th Energy Level
70,000.00 kJ/mol  
25
88,000.00 kJ/mol  
9
17th Energy Level
540.00 kJ/mol  
99+
880.00 kJ/mol  
26
18th Energy Level
3,200.00 kJ/mol  
99+
8,800.00 kJ/mol  
15
19th Energy Level
540.20 kJ/mol  
99+
880.00 kJ/mol  
24
20th Energy Level
700.00 kJ/mol  
36
880.00 kJ/mol  
14
21st Energy Level
1,130.00 kJ/mol  
29
880.00 kJ/mol  
37
22nd Energy Level
558.00 kJ/mol  
99+
880.00 kJ/mol  
12
23rd Energy Level
7,000.00 kJ/mol  
11
8,800.00 kJ/mol  
7
24th Energy Level
700.00 kJ/mol  
29
880.00 kJ/mol  
8
25th Energy Level
0.00 kJ/mol  
99+
880.00 kJ/mol  
6
26th Energy Level
586.20 kJ/mol  
99+
880.00 kJ/mol  
6
27th Energy Level
704.90 kJ/mol  
28
880.00 kJ/mol  
5
28th Energy Level
704.90 kJ/mol  
33
880.00 kJ/mol  
8
29th Energy Level
704.90 kJ/mol  
34
880.00 kJ/mol  
9
30th Energy Level
704.00 kJ/mol  
28
880.00 kJ/mol  
6
Electrochemical Equivalent
3.00 g/amp-hr  
21
1.14 g/amp-hr  
99+
Electron Work Function
4.90 eV  
12
4.55 eV  
18
Other Chemical Properties
Chemical Stability, Ionization  
Flammable, Ionization, Radioactive Isotopes, Radioactivity  
Atomic
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  
12
110  
28
Number of Electrons
113  
5
74  
99+
Radius of an Atom
  
  
Atomic Radius
170.00 pm  
24
136.00 pm  
99+
Covalent Radius
170.00 pm  
27
141.00 pm  
99+
Van der Waals Radius
320.00 pm  
3
202.00 pm  
34
Atomic Weight
286.00 amu  
4
192.22 amu  
34
Atomic Volume
21.10 cm3/mol  
24
9.53 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Copernicium
  
Osmium
  
Next Element
Flerovium
  
Platinum
  
Valence Electron Potential
6.20 (-eV)  
99+
140.00 (-eV)  
5
Lattice Constant
0.00 pm  
99+
383.90 pm  
29
Lattice Angles
-  
π/2, π/2, π/2  
Lattice C/A Ratio
1.58  
35
1.58  
35
Mechanical
Density
  
  
Density At Room Temperature
16.00 g/cm3  
19
22.56 g/cm3  
10
Density When Liquid (at m.p.)
16.00 g/cm3  
19
19.00 g/cm3  
13
Tensile Strength
80.00 MPa  
29
2,000.00 MPa  
2
Viscosity
0.00  
25
0.00  
21
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
37
0.00 (Pa)  
37
Vapor Pressure at 2000 K
0.00 (Pa)  
37
0.00 (Pa)  
26
Elasticity properties
  
  
Shear Modulus
40.00 GPa  
19
210.00 GPa  
2
Bulk Modulus
0.00 GPa  
99+
320.00 GPa  
3
Young's Modulus
12.20 GPa  
99+
528.00 GPa  
1
Poisson Ratio
0.30  
14
0.26  
22
Other Mechanical Properties
-  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
16.00  
21
21.78  
12
Magnetic Ordering
-  
Paramagnetic  
Permeability
0.00 H/m  
5
0.00 H/m  
16
Susceptibility
0.00  
24
0.00  
5
Electrical Properties
  
  
Electrical Property
-  
Conductor  
Resistivity
0.32 nΩ·m  
99+
47.10 nΩ·m  
99+
Electrical Conductivity
0.00 106/cm Ω  
99+
0.19 106/cm Ω  
10
Electron Affinity
0.00 kJ/mol  
99+
151.00 kJ/mol  
4
Thermal
Specific Heat
0.12 J/(kg K)  
99+
0.13 J/(kg K)  
40
Molar Heat Capacity
27.00 J/mol·K  
29
25.10 J/mol·K  
99+
Thermal Conductivity
1.70 W/m·K  
99+
147.00 W/m·K  
10
Critical Temperature
700.00 K  
99+
2,719.00 K  
8
Thermal Expansion
6.20 µm/(m·K)  
99+
6.40 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
410.80 kJ/mol  
23
799.10 kJ/mol  
1
Enthalpy of Fusion
-  
35.23 kJ/mol  
1
Enthalpy of Atomization
320.70 kJ/mol  
99+
837.00 kJ/mol  
1
Standard Molar Entropy
65.00 J/mol.K  
17
35.50 J/mol.K  
99+
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