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Meitnerium Iridium Comparison

Meitnerium
Iridium
Iridium Meitnerium comparison


Periodic Table
Symbol
Mt  
Ir  
Group Number
9  
9
9  
9
Period Number
7  
6  
Block
d block  
d block  
Element Family
Probably Transition  
Transition Metal  
CAS Number
54038016  
10
7439885  
99+
Space Group Name
-  
Fm_ 3m  
Space Group Number
166.00  
9
225.00  
3
Facts
Interesting Facts
Meitnerium is named after Lise Meitner, an Austrian physicist.  
  • Iridium element occurs as natural alloys of Platinum and Osmium.
  • Iridium element is known as the most corrosion resistance metal .
  
Sources
Bombarding Bi209 with Accelerated Nuclei of Fe58, Synthetically Produced  
Found in Minerals, Mining, Ores of Minerals  
History
  
  
Who Discovered
Gesellschaft für Schwerionenforschung  
Smithson Tennant  
Discovery
In 1982  
In 1803  
Abundance
  
  
Abundance In Universe
0.00 %  
40
0.00 %  
23
Abundance In Sun
-  
0.00 %  
25
Abundance In Meteorites
0.00 %  
99+
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 Meitnerium 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
-  
Alloys  
Biological Properties
  
  
Toxicity
-  
Toxic  
Present in Human Body
No  
Yes  
In Blood
0.00 Blood/mg dm-3  
40
0.00 Blood/mg dm-3  
40
In Bone
0.00 p.p.m.  
99+
0.00 p.p.m.  
99+
Physical
Melting Point
-  
2,410.00 °C  
7
Boiling Point
0.00 °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
400.00 MPa  
34
1,670.00 MPa  
5
Vickers Hardness
350.00 MPa  
99+
1,760.00 MPa  
8
Speed of Sound
3,200.00 m/s  
35
4,825.00 m/s  
17
Optical Properties
  
  
Refractive Index
1.30  
99+
2.40  
7
Reflectivity
68.00 %  
15
78.00 %  
8
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Mt  
Ir  
Isotopes
  
  
Known Isotopes
4  
33
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
1.30  
33
2.20  
6
Allen Electronegativity
1.30  
40
1.68  
20
Electropositivity
  
  
Pauling Electropositivity
2.00  
99+
1.80  
99+
Ionization Energies
  
  
1st Energy Level
800.80 kJ/mol  
15
880.00 kJ/mol  
9
2nd Energy Level
1,823.60 kJ/mol  
18
1,600.00 kJ/mol  
36
3rd Energy Level
2,904.20 kJ/mol  
31
2,256.10 kJ/mol  
99+
4th Energy Level
3,859.40 kJ/mol  
99+
880.00 kJ/mol  
99+
5th Energy Level
4,920.80 kJ/mol  
99+
8,800.00 kJ/mol  
8
6th Energy Level
8,000.00 kJ/mol  
34
8,800.00 kJ/mol  
25
7th Energy level
8,000.00 kJ/mol  
28
8,800.00 kJ/mol  
22
8th Energy Level
8,000.00 kJ/mol  
28
8,800.00 kJ/mol  
22
9th Energy Level
6,700.00 kJ/mol  
36
8,800.00 kJ/mol  
21
10th Energy Level
5,800.00 kJ/mol  
99+
8,800.00 kJ/mol  
23
11th Energy Level
6,300.00 kJ/mol  
99+
8,800.00 kJ/mol  
20
12th Energy Level
0.00 kJ/mol  
99+
8,800.00 kJ/mol  
40
13th Energy Level
8,000.00 kJ/mol  
20
8,800.00 kJ/mol  
15
14th Energy Level
1,156.00 kJ/mol  
99+
8,800.00 kJ/mol  
14
15th Energy Level
80,000.00 kJ/mol  
17
88,000.00 kJ/mol  
8
16th Energy Level
58,700.00 kJ/mol  
39
88,000.00 kJ/mol  
9
17th Energy Level
1,110.00 kJ/mol  
20
880.00 kJ/mol  
26
18th Energy Level
8,000.00 kJ/mol  
23
8,800.00 kJ/mol  
15
19th Energy Level
1,110.00 kJ/mol  
17
880.00 kJ/mol  
24
20th Energy Level
850.00 kJ/mol  
18
880.00 kJ/mol  
14
21st Energy Level
800.00 kJ/mol  
99+
880.00 kJ/mol  
37
22nd Energy Level
380.00 kJ/mol  
99+
880.00 kJ/mol  
12
23rd Energy Level
8,000.00 kJ/mol  
9
8,800.00 kJ/mol  
7
24th Energy Level
565.60 kJ/mol  
99+
880.00 kJ/mol  
8
25th Energy Level
800.00 kJ/mol  
13
880.00 kJ/mol  
6
26th Energy Level
800.00 kJ/mol  
13
880.00 kJ/mol  
6
27th Energy Level
800.00 kJ/mol  
12
880.00 kJ/mol  
5
28th Energy Level
800.00 kJ/mol  
18
880.00 kJ/mol  
8
29th Energy Level
800.00 kJ/mol  
18
880.00 kJ/mol  
9
30th Energy Level
800.00 kJ/mol  
13
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
Ionization, Radioactive Isotopes, Radioactivity  
Flammable, Ionization, Radioactive Isotopes, Radioactivity  
Atomic
Atomic Number
109  
9
77  
39
Electron Configuration
[Rn] 5f14 6d7 7s2  
[Xe] 4f14 5d7 6s2  
Crystal Structure
Face Centered Cubic (FCC)  
Face Centered Cubic (FCC)  
Crystal Lattice
FCC-Crystal-Structure-of-Meitnerium.jpg#100  
FCC-Crystal-Structure-of-Iridium.jpg#100  
Atom
  
  
Number of Protons
109  
9
74  
99+
Number of Neutrons
157  
8
110  
28
Number of Electrons
109  
9
74  
99+
Radius of an Atom
  
  
Atomic Radius
122.00 pm  
99+
136.00 pm  
99+
Covalent Radius
129.00 pm  
99+
141.00 pm  
99+
Van der Waals Radius
260.00 pm  
9
202.00 pm  
34
Atomic Weight
278.00 amu  
7
192.22 amu  
34
Atomic Volume
20.20 cm3/mol  
30
9.53 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Hassium
  
Osmium
  
Next Element
Darmstadtium
  
Platinum
  
Valence Electron Potential
31.20 (-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
1.59  
27
1.58  
35
Mechanical
Density
  
  
Density At Room Temperature
37.40 g/cm3  
2
22.56 g/cm3  
10
Density When Liquid (at m.p.)
37.40 g/cm3  
2
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
35.00 GPa  
21
210.00 GPa  
2
Bulk Modulus
0.00 GPa  
99+
320.00 GPa  
3
Young's Modulus
13.50 GPa  
99+
528.00 GPa  
1
Poisson Ratio
0.25  
24
0.26  
22
Other Mechanical Properties
-  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
37.40  
4
21.78  
12
Magnetic Ordering
Paramagnetic  
Paramagnetic  
Permeability
0.00 H/m  
12
0.00 H/m  
16
Susceptibility
0.00  
24
0.00  
5
Electrical Properties
  
  
Electrical Property
-  
Conductor  
Resistivity
0.35 nΩ·m  
99+
47.10 nΩ·m  
99+
Electrical Conductivity
0.00 106/cm Ω  
99+
0.19 106/cm Ω  
10
Electron Affinity
50.00 kJ/mol  
26
151.00 kJ/mol  
4
Thermal
Specific Heat
0.10 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
0.00 W/m·K  
99+
147.00 W/m·K  
10
Critical Temperature
1,323.00 K  
99+
2,719.00 K  
8
Thermal Expansion
10.30 µm/(m·K)  
99+
6.40 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
110.00 kJ/mol  
99+
799.10 kJ/mol  
1
Enthalpy of Fusion
-  
35.23 kJ/mol  
1
Enthalpy of Atomization
350.20 kJ/mol  
37
837.00 kJ/mol  
1
Standard Molar Entropy
63.80 J/mol.K  
22
35.50 J/mol.K  
99+
Summary >>
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