1 Periodic Table
1.1 Symbol
1.2 Group Number
1.4 Period Number
1.5 Block
1.6 Element Family
Transition Metal
Transition Metal
1.7 CAS Number
743988553850354
7429905
54386242
1.8 Space Group Name
1.9 Space Group Number
2 Facts
2.1 Interesting Facts
- Iridium element occurs as natural alloys of Platinum and Osmium.
- Iridium element is known as the most corrosion resistance metal .
- IUPAC allotted a temporary name to Dubnium metal as “ Unnilpentium”.
- In the production of Dubnium, thermal gradient chromatography is used.
2.2 Sources
Found in Minerals, Mining, Ores of Minerals
Produced by Bombarding Am243 with Ne22, Synthetically Produced
2.3 History
2.3.1 Who Discovered
Smithson Tennant
Joint Institute for Nuclear Research
2.3.2 Discovery
2.4 Abundance
2.4.1 Abundance In Universe
2.4.3 Abundance In Sun
~0.0000002 %~-9999 %
1E-08
0.1
2.5.2 Abundance In Meteorites
2.6.3 Abundance In Earth's Crust
2.6.5 Abundance In Oceans
2.6.7 Abundance In Humans
3 Uses
3.1 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 Dubnium metal are limited to research purpose only.
3.1.1 Industrial Uses
Automobile Industry, Electrical Industry, Electronic Industry
NA
3.1.2 Medical Uses
3.1.3 Other Uses
3.2 Biological Properties
3.2.1 Toxicity
3.2.2 Present in Human Body
3.2.3 In Blood
NA0.00 Blood/mg dm-3
0
1970
3.2.6 In Bone
4 Physical
4.1 Melting Point
4.2 Boiling Point
4.3 Appearance
4.3.1 Physical State
4.3.2 Color
4.3.3 Luster
4.4 Hardness
4.4.1 Mohs Hardness
4.4.4 Brinell Hardness
4.4.6 Vickers Hardness
4.5 Speed of Sound
4.6 Optical Properties
4.6.1 Refractive Index
4.6.3 Reflectivity
4.7 Allotropes
4.7.2 α Allotropes
Not Available
Not Available
4.7.3 β Allotropes
Not Available
Not Available
4.7.4 γ Allotropes
Not Available
Not Available
5 Chemical
5.1 Chemical Formula
5.2 Isotopes
5.2.1 Known Isotopes
5.3 Electronegativity
5.3.1 Pauling Electronegativity
5.3.3 Sanderson Electronegativity
5.3.6 Allred Rochow Electronegativity
5.3.8 Mulliken-Jaffe Electronegativity
5.3.10 Allen Electronegativity
5.4 Electropositivity
5.4.1 Pauling Electropositivity
5.5 Ionization Energies
5.5.1 1st Energy Level
880.00 kJ/mol664.80 kJ/mol
375.7
26130
5.5.4 2nd Energy Level
1,600.00 kJ/mol1,546.70 kJ/mol
710.2162
28750
5.5.6 3rd Energy Level
NA2,378.40 kJ/mol
1600
34230
5.5.8 4th Energy Level
NA3,298.80 kJ/mol
2780
37066
5.5.11 5th Energy Level
NA4,305.20 kJ/mol
4305.2
97510
5.6.1 6th Energy Level
5.6.2 7th Energy level
1.3.1 8th Energy Level
2.2.1 9th Energy Level
2.5.2 10th Energy Level
2.8.2 11th Energy Level
2.10.2 12th Energy Level
3.5.3 13th Energy Level
3.5.6 14th Energy Level
3.6.1 15th Energy Level
3.6.3 16th Energy Level
3.7.2 17th Energy Level
3.9.1 18th Energy Level
3.10.1 19th Energy Level
3.12.1 20th Energy Level
5.1.4 21st Energy Level
5.1.5 22nd Energy Level
5.1.8 23rd Energy Level
6.2.1 24th Energy Level
6.2.2 25th Energy Level
6.4.2 26th Energy Level
6.5.2 27th Energy Level
6.6.2 28th Energy Level
6.8.2 29th Energy Level
6.8.4 30th Energy Level
6.9 Electrochemical Equivalent
1.14 g/amp-hrNA
0.16812
8.3209
6.11 Electron Work Function
7.2 Other Chemical Properties
Flammable, Ionization, Radioactive Isotopes, Radioactivity
Ionization, Radioactive Isotopes, Radioactivity
8 Atomic
8.1 Atomic Number
8.3 Electron Configuration
[Xe] 4f14 5d7 6s2
[Rn] 5f14 6d3 7s2
8.4 Crystal Structure
Face Centered Cubic (FCC)
Body Centered Cubic (BCC)
8.4.1 Crystal Lattice
8.5 Atom
8.5.1 Number of Protons
8.6.3 Number of Neutrons
9.2.3 Number of Electrons
9.4 Radius of an Atom
9.4.1 Atomic Radius
136.00 pm139.00 pm
112
265
10.1.1 Covalent Radius
141.00 pm149.00 pm
96
260
10.2.1 Van der Waals Radius
10.3 Atomic Weight
192.22 amu268.00 amu
6.94
294
10.6 Atomic Volume
9.53 cm3/molNA
1.39
71.07
10.8 Adjacent Atomic Numbers
10.8.1 Previous Element
10.8.2 Next Element
10.9 Valence Electron Potential
10.12 Lattice Constant
383.90 pmNA
228.58
891.25
10.14 Lattice Angles
10.15 Lattice C/A Ratio
11 Mechanical
11.1 Density
11.1.1 Density At Room Temperature
22.56 g/cm329.30 g/cm3
0.534
40.7
11.2.2 Density When Liquid (at m.p.)
11.3 Tensile Strength
11.4 Viscosity
11.5 Vapor Pressure
11.5.1 Vapor Pressure at 1000 K
11.5.3 Vapor Pressure at 2000 K
11.6 Elasticity properties
11.6.1 Shear Modulus
11.6.4 Bulk Modulus
11.6.6 Young's Modulus
11.7 Poisson Ratio
11.8 Other Mechanical Properties
12 Magnetic
12.1 Magnetic Characteristics
12.1.1 Specific Gravity
12.1.3 Magnetic Ordering
12.1.4 Permeability
12.1.6 Susceptibility
12.2 Electrical Properties
12.2.1 Electrical Property
12.2.2 Resistivity
12.2.4 Electrical Conductivity
0.19 106/cm ΩNA
0.00666
0.63
12.2.6 Electron Affinity
13 Thermal
13.1 Specific Heat
13.2 Molar Heat Capacity
25.10 J/mol·KNA
16.443
62.7
13.3 Thermal Conductivity
13.4 Critical Temperature
13.5 Thermal Expansion
13.6 Enthalpy
13.6.1 Enthalpy of Vaporization
799.10 kJ/molNA
7.32
799.1
13.6.4 Enthalpy of Fusion
13.6.6 Enthalpy of Atomization
13.8 Standard Molar Entropy
35.50 J/mol.KNA
9.5
198.1