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Iridium vs Seaborgium

Iridium
Seaborgium
Seaborgium vs Iridium


Periodic Table
Symbol
Ir  
Sg  
Group Number
9  
9
6  
12
Period Number
6  
7  
Block
d block  
d block  
Element Family
Transition Metal  
Transition Metal  
CAS Number
7439885  
99+
54038812  
9
Space Group Name
Fm_ 3m  
-  
Space Group Number
225.00  
3
166.00  
9
Facts
Interesting Facts
  • Iridium element occurs as natural alloys of Platinum and Osmium.
  • Iridium element is known as the most corrosion resistance metal .
  
  • Seaborgium most stable isotope is Sg and it has 2.1 min of half- life.
  • And other isotopes of Seaborgium have half-lives as short as 3 ms.
  
Sources
Found in Minerals, Mining, Ores of Minerals  
Synthetically Produced  
History
  
  
Who Discovered
Smithson Tennant  
Lawrence Berkeley National Laboratory  
Discovery
In 1803  
In 1974  
Abundance
  
  
Abundance In Universe
0.00 %  
23
0.00 %  
40
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
  • 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.
  
  • Currently known uses of Seaborgium metal are limited to research purpose only.
  
Industrial Uses
Automobile Industry, Electrical Industry, Electronic Industry  
-  
Medical Uses
-  
-  
Other Uses
Alloys  
Research Purposes  
Biological Properties
  
  
Toxicity
Toxic  
-  
Present in Human Body
Yes  
No  
In Blood
0.00 Blood/mg dm-3  
40
0.00 Blood/mg dm-3  
27
In Bone
0.00 p.p.m.  
99+
0.00 p.p.m.  
99+
Physical
Melting Point
2,410.00 °C  
7
-  
Boiling Point
4,527.00 °C  
10
0.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery White  
-  
Luster
Metallic  
Unknown Luster  
Hardness
  
  
Mohs Hardness
6.50  
5
6.00  
6
Brinell Hardness
1,670.00 MPa  
5
400.00 MPa  
34
Vickers Hardness
1,760.00 MPa  
8
520.00 MPa  
33
Speed of Sound
4,825.00 m/s  
17
3,200.00 m/s  
35
Optical Properties
  
  
Refractive Index
2.40  
7
1.30  
99+
Reflectivity
78.00 %  
8
68.00 %  
15
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Ir  
Sg  
Isotopes
  
  
Known Isotopes
34  
5
9  
29
Electronegativity
  
  
Pauling Electronegativity
2.20  
5
0.00  
99+
Sanderson Electronegativity
2.20  
8
1.90  
13
Allred Rochow Electronegativity
1.55  
12
1.30  
25
Mulliken-Jaffe Electronegativity
2.20  
6
1.30  
33
Allen Electronegativity
1.68  
20
1.90  
8
Electropositivity
  
  
Pauling Electropositivity
1.80  
99+
2.20  
39
Ionization Energies
  
  
1st Energy Level
880.00 kJ/mol  
9
757.40 kJ/mol  
21
2nd Energy Level
1,600.00 kJ/mol  
36
1,732.90 kJ/mol  
29
3rd Energy Level
2,256.10 kJ/mol  
99+
2,483.50 kJ/mol  
99+
4th Energy Level
880.00 kJ/mol  
99+
3,415.60 kJ/mol  
99+
5th Energy Level
8,800.00 kJ/mol  
8
4,561.80 kJ/mol  
99+
6th Energy Level
8,800.00 kJ/mol  
25
5,715.80 kJ/mol  
99+
7th Energy level
8,800.00 kJ/mol  
22
5,700.00 kJ/mol  
99+
8th Energy Level
8,800.00 kJ/mol  
22
5,700.00 kJ/mol  
99+
9th Energy Level
8,800.00 kJ/mol  
21
5,710.00 kJ/mol  
99+
10th Energy Level
8,800.00 kJ/mol  
23
6,270.00 kJ/mol  
99+
11th Energy Level
8,800.00 kJ/mol  
20
6,600.00 kJ/mol  
39
12th Energy Level
8,800.00 kJ/mol  
40
971.00 kJ/mol  
99+
13th Energy Level
8,800.00 kJ/mol  
15
5,700.00 kJ/mol  
99+
14th Energy Level
8,800.00 kJ/mol  
14
5,700.00 kJ/mol  
99+
15th Energy Level
88,000.00 kJ/mol  
8
54,000.00 kJ/mol  
99+
16th Energy Level
88,000.00 kJ/mol  
9
64,000.00 kJ/mol  
27
17th Energy Level
880.00 kJ/mol  
26
579.80 kJ/mol  
99+
18th Energy Level
8,800.00 kJ/mol  
15
3,300.00 kJ/mol  
99+
19th Energy Level
880.00 kJ/mol  
24
579.80 kJ/mol  
99+
20th Energy Level
880.00 kJ/mol  
14
579.00 kJ/mol  
99+
21st Energy Level
880.00 kJ/mol  
37
6,270.00 kJ/mol  
14
22nd Energy Level
880.00 kJ/mol  
12
573.00 kJ/mol  
99+
23rd Energy Level
8,800.00 kJ/mol  
7
5,790.00 kJ/mol  
22
24th Energy Level
880.00 kJ/mol  
8
971.00 kJ/mol  
4
25th Energy Level
880.00 kJ/mol  
6
0.00 kJ/mol  
99+
26th Energy Level
880.00 kJ/mol  
6
579.10 kJ/mol  
99+
27th Energy Level
880.00 kJ/mol  
5
870.00 kJ/mol  
7
28th Energy Level
880.00 kJ/mol  
8
870.00 kJ/mol  
10
29th Energy Level
880.00 kJ/mol  
9
761.90 kJ/mol  
21
30th Energy Level
880.00 kJ/mol  
6
0.00 kJ/mol  
99+
Electrochemical Equivalent
1.14 g/amp-hr  
99+
3.20 g/amp-hr  
14
Electron Work Function
4.55 eV  
18
6.00 eV  
1
Other Chemical Properties
Flammable, Ionization, Radioactive Isotopes, Radioactivity  
-  
Atomic
Atomic Number
77  
39
106  
12
Electron Configuration
[Xe] 4f14 5d7 6s2  
[Rn] 5f14 6d2 7s2  
Crystal Structure
Face Centered Cubic (FCC)  
Body Centered Cubic (BCC)  
Crystal Lattice
FCC-Crystal-Structure-of-Iridium.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
74  
99+
106  
12
Number of Neutrons
110  
28
157  
8
Number of Electrons
74  
99+
106  
12
Radius of an Atom
  
  
Atomic Radius
136.00 pm  
99+
132.00 pm  
99+
Covalent Radius
141.00 pm  
99+
143.00 pm  
99+
Van der Waals Radius
202.00 pm  
34
230.00 pm  
24
Atomic Weight
192.22 amu  
34
269.00 amu  
9
Atomic Volume
9.53 cm3/mol  
99+
35.00 cm3/mol  
8
Adjacent Atomic Numbers
  
  
Previous Element
Osmium
  
Dubnium
  
Next Element
Platinum
  
Bohrium
  
Valence Electron Potential
140.00 (-eV)  
5
6.10 (-eV)  
99+
Lattice Constant
383.90 pm  
29
-  
Lattice Angles
π/2, π/2, π/2  
-  
Lattice C/A Ratio
1.58  
35
1.36  
99+
Mechanical
Density
  
  
Density At Room Temperature
22.56 g/cm3  
10
35.00 g/cm3  
4
Density When Liquid (at m.p.)
19.00 g/cm3  
13
35.00 g/cm3  
4
Tensile Strength
2,000.00 MPa  
2
30.00 MPa  
99+
Viscosity
0.00  
21
0.00  
25
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
37
0.00 (Pa)  
37
Vapor Pressure at 2000 K
0.00 (Pa)  
26
0.00 (Pa)  
99+
Elasticity properties
  
  
Shear Modulus
210.00 GPa  
2
30.00 GPa  
27
Bulk Modulus
320.00 GPa  
3
0.00 GPa  
99+
Young's Modulus
528.00 GPa  
1
12.60 GPa  
99+
Poisson Ratio
0.26  
22
0.25  
24
Other Mechanical Properties
-  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
21.78  
12
35.00  
6
Magnetic Ordering
Paramagnetic  
-  
Permeability
0.00 H/m  
16
0.00 H/m  
7
Susceptibility
0.00  
5
0.00  
24
Electrical Properties
  
  
Electrical Property
Conductor  
-  
Resistivity
47.10 nΩ·m  
99+
0.38 nΩ·m  
99+
Electrical Conductivity
0.19 106/cm Ω  
10
0.00 106/cm Ω  
99+
Electron Affinity
151.00 kJ/mol  
4
50.00 kJ/mol  
26
Thermal
Specific Heat
0.13 J/(kg K)  
40
0.27 J/(kg K)  
19
Molar Heat Capacity
25.10 J/mol·K  
99+
35.00 J/mol·K  
5
Thermal Conductivity
147.00 W/m·K  
10
0.14 W/m·K  
99+
Critical Temperature
2,719.00 K  
8
1,200.00 K  
99+
Thermal Expansion
6.40 µm/(m·K)  
99+
11.00 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
799.10 kJ/mol  
1
585.00 kJ/mol  
10
Enthalpy of Fusion
35.23 kJ/mol  
1
-  
Enthalpy of Atomization
837.00 kJ/mol  
1
650.00 kJ/mol  
8
Standard Molar Entropy
35.50 J/mol.K  
99+
42.70 J/mol.K  
99+
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