1 Periodic Table
1.1 Symbol
1.2 Group Number
1.9 Period Number
1.11 Block
1.12 Element Family
Transition Metal
Transition Metal
1.13 CAS Number
74398857440224
7429905
54386242
3.5 Space Group Name
3.6 Space Group Number
5 Facts
5.1 Interesting Facts
- Iridium element occurs as natural alloys of Platinum and Osmium.
- Iridium element is known as the most corrosion resistance metal .
- It is the most reflective element.
- Silver is the second most ductile metal after Gold.
- It is also used in Dentistry as a dental alloys for clips and crowning.
5.3 Sources
Found in Minerals, Mining, Ores of Minerals
Earth's crust, Found in Minerals, Ores of metals
5.4 History
5.4.1 Who Discovered
5.5.1 Discovery
5.6 Abundance
5.6.1 Abundance In Universe
2 * 10-7 %6 * 10-8 %
5E-09
0.11
5.6.5 Abundance In Sun
~0.0000002 %~0.0000001 %
1E-08
0.1
6.4.4 Abundance In Meteorites
6.4.9 Abundance In Earth's Crust
6.4.15 Abundance In Oceans
9.2.4 Abundance In Humans
10 Uses
10.1 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.
- Silver is mainly used for Jewelry and show piece.
- It is used for manufacturing high quality mirrors due to its reflectivity property.
10.1.1 Industrial Uses
Automobile Industry, Electrical Industry, Electronic Industry
Chemical Industry, Clothing Industry, Electrical Industry
10.1.2 Medical Uses
NA
Dentistry, Pharmaceutical Industry
10.1.3 Other Uses
Alloys
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues
10.2 Biological Properties
10.2.1 Toxicity
10.2.2 Present in Human Body
10.2.3 In Blood
NA0.00 Blood/mg dm-3
0
1970
13.1.2 In Bone
15 Physical
15.1 Melting Point
2,410.00 °C961.93 °C
27
3410
15.5 Boiling Point
4,527.00 °C2,212.00 °C
147
5660
16.2 Appearance
16.2.1 Physical State
16.2.2 Color
Silvery White
Silvery White
16.2.3 Luster
16.3 Hardness
16.3.1 Mohs Hardness
16.4.4 Brinell Hardness
1,670.00 MPa251.00 MPa
0.14
3490
16.8.1 Vickers Hardness
1,760.00 MPa229.00 MPa
121
3430
16.10 Speed of Sound
4,825.00 m/s2,680.00 m/s
818
16200
16.16 Optical Properties
16.16.1 Refractive Index
19.2.2 Reflectivity
20.3 Allotropes
20.3.1 α Allotropes
Not Available
Not Available
20.3.2 β Allotropes
Not Available
Not Available
20.3.3 γ Allotropes
Not Available
Not Available
21 Chemical
21.1 Chemical Formula
21.2 Isotopes
21.2.1 Known Isotopes
21.6 Electronegativity
21.6.1 Pauling Electronegativity
21.6.7 Sanderson Electronegativity
21.6.12 Allred Rochow Electronegativity
21.7.5 Mulliken-Jaffe Electronegativity
21.8.4 Allen Electronegativity
21.14 Electropositivity
21.14.1 Pauling Electropositivity
21.16 Ionization Energies
21.16.1 1st Energy Level
880.00 kJ/mol731.00 kJ/mol
375.7
26130
21.16.6 2nd Energy Level
1,600.00 kJ/mol2,070.00 kJ/mol
710.2162
28750
21.16.11 3rd Energy Level
NA3,361.00 kJ/mol
1600
34230
21.16.16 4th Energy Level
21.16.24 5th Energy Level
21.16.30 6th Energy Level
21.16.34 7th Energy level
21.16.39 8th Energy Level
21.16.46 9th Energy Level
21.16.51 10th Energy Level
21.16.58 11th Energy Level
21.16.65 12th Energy Level
21.16.72 13th Energy Level
21.16.80 14th Energy Level
21.16.87 15th Energy Level
21.16.93 16th Energy Level
21.16.99 17th Energy Level
21.17.4 18th Energy Level
21.19.3 19th Energy Level
23.2.1 20th Energy Level
23.7.4 21st Energy Level
23.7.9 22nd Energy Level
23.8.2 23rd Energy Level
23.9.4 24th Energy Level
23.9.10 25th Energy Level
23.12.2 26th Energy Level
23.15.1 27th Energy Level
23.18.1 28th Energy Level
23.21.1 29th Energy Level
24.5.1 30th Energy Level
26.2 Electrochemical Equivalent
1.14 g/amp-hr4.02 g/amp-hr
0.16812
8.3209
27.11 Electron Work Function
27.15 Other Chemical Properties
Flammable, Ionization, Radioactive Isotopes, Radioactivity
Chemical Stability, Ionization, Solubility
28 Atomic
28.1 Atomic Number
28.4 Electron Configuration
[Xe] 4f14 5d7 6s2
[Kr] 4d10 5s1
28.5 Crystal Structure
Face Centered Cubic (FCC)
Face Centered Cubic (FCC)
28.5.1 Crystal Lattice
28.6 Atom
28.6.1 Number of Protons
28.6.3 Number of Neutrons
28.8.1 Number of Electrons
28.11 Radius of an Atom
28.11.1 Atomic Radius
136.00 pm144.00 pm
112
265
29.1.2 Covalent Radius
141.00 pm145.00 pm
96
260
30.3.1 Van der Waals Radius
202.00 pm172.00 pm
139
348
31.2 Atomic Weight
192.22 amu107.87 amu
6.94
294
31.4 Atomic Volume
9.53 cm3/mol10.30 cm3/mol
1.39
71.07
31.6 Adjacent Atomic Numbers
31.6.1 Previous Element
31.6.2 Next Element
31.7 Valence Electron Potential
140.00 (-eV)11.40 (-eV)
8
392.42
31.10 Lattice Constant
383.90 pm408.53 pm
228.58
891.25
31.15 Lattice Angles
π/2, π/2, π/2
π/2, π/2, π/2
31.16 Lattice C/A Ratio
33 Mechanical
33.1 Density
33.1.1 Density At Room Temperature
22.56 g/cm310.49 g/cm3
0.534
40.7
33.4.1 Density When Liquid (at m.p.)
19.00 g/cm39.32 g/cm3
0.512
20
33.8 Tensile Strength
33.10 Viscosity
35.1 Vapor Pressure
35.1.1 Vapor Pressure at 1000 K
35.4.1 Vapor Pressure at 2000 K
35.8 Elasticity properties
35.8.1 Shear Modulus
210.00 GPa30.00 GPa
1.3
222
36.1.3 Bulk Modulus
320.00 GPa100.00 GPa
1.6
462
36.3.1 Young's Modulus
528.00 GPa83.00 GPa
1.7
528
36.5 Poisson Ratio
36.9 Other Mechanical Properties
37 Magnetic
37.1 Magnetic Characteristics
37.1.1 Specific Gravity
37.3.2 Magnetic Ordering
37.3.3 Permeability
37.3.5 Susceptibility
38.2 Electrical Properties
38.2.1 Electrical Property
38.2.2 Resistivity
47.10 nΩ·m15.87 nΩ·m
0.18
961
38.3.1 Electrical Conductivity
0.19 106/cm Ω0.63 106/cm Ω
0.00666
0.63
38.5.1 Electron Affinity
151.00 kJ/mol125.60 kJ/mol
0
222.8
39 Thermal
39.1 Specific Heat
0.13 J/(kg K)0.24 J/(kg K)
0.11
3.6
39.3 Molar Heat Capacity
25.10 J/mol·K25.35 J/mol·K
16.443
62.7
39.4 Thermal Conductivity
147.00 W/m·K429.00 W/m·K
6.3
429
39.7 Critical Temperature
39.8 Thermal Expansion
6.40 µm/(m·K)18.90 µm/(m·K)
4.5
97
39.10 Enthalpy
39.10.1 Enthalpy of Vaporization
799.10 kJ/mol255.10 kJ/mol
7.32
799.1
40.1.2 Enthalpy of Fusion
35.23 kJ/mol11.30 kJ/mol
2.1
35.23
40.2.1 Enthalpy of Atomization
837.00 kJ/mol284.50 kJ/mol
61.5
837
40.3 Standard Molar Entropy
35.50 J/mol.K42.60 J/mol.K
9.5
198.1