1 Periodic Table
1.1 Symbol
1.2 Group Number
1.3 Period Number
1.5 Block
1.6 Element Family
Transition Metal
Transition Metal
1.7 CAS Number
743988553850354
7429905
54386242
1.9 Space Group Name
1.10 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
2.6.1 Abundance In Sun
~0.0000002 %~-9999 %
1E-08
0.1
2.9.1 Abundance In Meteorites
4.1.1 Abundance In Earth's Crust
4.1.3 Abundance In Oceans
4.5.1 Abundance In Humans
5 Uses
5.1 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.
5.1.1 Industrial Uses
Automobile Industry, Electrical Industry, Electronic Industry
NA
5.1.2 Medical Uses
5.1.3 Other Uses
5.2 Biological Properties
5.2.1 Toxicity
5.2.2 Present in Human Body
5.2.3 In Blood
NA0.00 Blood/mg dm-3
0
1970
5.3.2 In Bone
6 Physical
6.1 Melting Point
6.3 Boiling Point
6.5 Appearance
6.5.1 Physical State
6.5.2 Color
6.5.3 Luster
6.6 Hardness
6.6.1 Mohs Hardness
6.6.4 Brinell Hardness
6.8.1 Vickers Hardness
6.10 Speed of Sound
7.4 Optical Properties
7.4.1 Refractive Index
7.5.1 Reflectivity
7.6 Allotropes
7.6.1 α Allotropes
Not Available
Not Available
7.6.2 β Allotropes
Not Available
Not Available
7.6.3 γ Allotropes
Not Available
Not Available
8 Chemical
8.1 Chemical Formula
8.2 Isotopes
8.2.1 Known Isotopes
9.2 Electronegativity
9.2.1 Pauling Electronegativity
9.2.3 Sanderson Electronegativity
9.2.6 Allred Rochow Electronegativity
9.3.1 Mulliken-Jaffe Electronegativity
10.2.1 Allen Electronegativity
10.6 Electropositivity
10.6.1 Pauling Electropositivity
10.7 Ionization Energies
10.7.1 1st Energy Level
880.00 kJ/mol664.80 kJ/mol
375.7
26130
10.9.2 2nd Energy Level
1,600.00 kJ/mol1,546.70 kJ/mol
710.2162
28750
10.10.1 3rd Energy Level
NA2,378.40 kJ/mol
1600
34230
10.10.3 4th Energy Level
NA3,298.80 kJ/mol
2780
37066
10.11.3 5th Energy Level
NA4,305.20 kJ/mol
4305.2
97510
10.11.5 6th Energy Level
10.12.1 7th Energy level
10.13.1 8th Energy Level
11.1.2 9th Energy Level
11.2.3 10th Energy Level
11.2.5 11th Energy Level
11.3.3 12th Energy Level
11.3.5 13th Energy Level
11.3.6 14th Energy Level
11.3.8 15th Energy Level
12.1.1 16th Energy Level
12.1.2 17th Energy Level
12.2.1 18th Energy Level
12.3.1 19th Energy Level
12.3.2 20th Energy Level
12.4.1 21st Energy Level
12.4.2 22nd Energy Level
12.5.1 23rd Energy Level
12.5.2 24th Energy Level
12.6.2 25th Energy Level
12.6.3 26th Energy Level
12.6.5 27th Energy Level
12.6.6 28th Energy Level
12.6.7 29th Energy Level
12.6.9 30th Energy Level
12.7 Electrochemical Equivalent
1.14 g/amp-hrNA
0.16812
8.3209
12.9 Electron Work Function
12.10 Other Chemical Properties
Flammable, Ionization, Radioactive Isotopes, Radioactivity
Ionization, Radioactive Isotopes, Radioactivity
13 Atomic
13.1 Atomic Number
13.2 Electron Configuration
[Xe] 4f14 5d7 6s2
[Rn] 5f14 6d3 7s2
13.3 Crystal Structure
Face Centered Cubic (FCC)
Body Centered Cubic (BCC)
13.3.1 Crystal Lattice
13.4 Atom
13.4.1 Number of Protons
13.4.2 Number of Neutrons
13.4.3 Number of Electrons
13.5 Radius of an Atom
13.5.1 Atomic Radius
136.00 pm139.00 pm
112
265
13.5.2 Covalent Radius
141.00 pm149.00 pm
96
260
13.5.3 Van der Waals Radius
13.6 Atomic Weight
192.22 amu268.00 amu
6.94
294
13.7 Atomic Volume
9.53 cm3/molNA
1.39
71.07
13.8 Adjacent Atomic Numbers
13.8.1 Previous Element
13.8.2 Next Element
13.9 Valence Electron Potential
13.10 Lattice Constant
383.90 pmNA
228.58
891.25
13.11 Lattice Angles
13.12 Lattice C/A Ratio
14 Mechanical
14.1 Density
14.1.1 Density At Room Temperature
22.56 g/cm329.30 g/cm3
0.534
40.7
14.1.2 Density When Liquid (at m.p.)
14.2 Tensile Strength
14.3 Viscosity
14.4 Vapor Pressure
14.4.1 Vapor Pressure at 1000 K
14.4.2 Vapor Pressure at 2000 K
14.5 Elasticity properties
14.5.1 Shear Modulus
14.5.2 Bulk Modulus
14.5.3 Young's Modulus
14.6 Poisson Ratio
14.7 Other Mechanical Properties
15 Magnetic
15.1 Magnetic Characteristics
15.1.1 Specific Gravity
15.1.2 Magnetic Ordering
15.1.3 Permeability
15.1.4 Susceptibility
15.2 Electrical Properties
15.2.1 Electrical Property
15.2.2 Resistivity
15.2.3 Electrical Conductivity
0.19 106/cm ΩNA
0.00666
0.63
15.2.4 Electron Affinity
16 Thermal
16.1 Specific Heat
16.2 Molar Heat Capacity
25.10 J/mol·KNA
16.443
62.7
16.3 Thermal Conductivity
16.4 Critical Temperature
16.5 Thermal Expansion
16.6 Enthalpy
16.6.1 Enthalpy of Vaporization
799.10 kJ/molNA
7.32
799.1
16.6.2 Enthalpy of Fusion
16.6.3 Enthalpy of Atomization
16.7 Standard Molar Entropy
35.50 J/mol.KNA
9.5
198.1