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Iridium
Iridium

Dubnium
Dubnium



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Iridium
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Dubnium

Iridium Dubnium Comparison

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1 Periodic Table
1.1 Symbol
Ir
Db
1.2 Group Number
95
Gadolinium Metal
0 17
1.3 Period Number
67
Lithium Metal
2 7
1.5 Block
d block
d block
1.6 Element Family
Transition Metal
Transition Metal
1.7 CAS Number
743988553850354
Aluminium Metal
7429905 54386242
1.9 Space Group Name
Fm_ 3m
Not Available
1.10 Space Group Number
225.00NA
Plutonium Metal
11 229
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
In 1803
In 1968
2.4 Abundance
2.4.1 Abundance In Universe
2 * 10-7 %NA
Thallium Metal
5E-09 0.11
2.6.1 Abundance In Sun
~0.0000002 %~-9999 %
Beryllium Metal
1E-08 0.1
2.9.1 Abundance In Meteorites
0.00 %NA
Gold Metal
1.7E-07 22
4.1.1 Abundance In Earth's Crust
0.00 %NA
Radium Metal
9.9E-12 8.1
4.1.3 Abundance In Oceans
NANA
Protactinium Metal
2E-23 1.1
4.5.1 Abundance In Humans
NANA
Radium Metal
1E-13 1.4
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
NA
NA
5.1.3 Other Uses
Alloys
Research Purposes
5.2 Biological Properties
5.2.1 Toxicity
Toxic
Unknown
5.2.2 Present in Human Body
5.2.3 In Blood
NA0.00 Blood/mg dm-3
Plutonium Metal
0 1970
5.3.2 In Bone
NA0.00 p.p.m.
Plutonium Metal
0 170000
6 Physical
6.1 Melting Point
2,410.00 °CNA
Francium Metal
27 3410
6.3 Boiling Point
4,527.00 °CNA
Flerovium Metal
147 5660
6.5 Appearance
6.5.1 Physical State
Solid
Solid
6.5.2 Color
Silvery White
Unknown
6.5.3 Luster
Metallic
Unknown Luster
6.6 Hardness
6.6.1 Mohs Hardness
6.50NA
Cesium Metal
0.2 8.5
6.6.4 Brinell Hardness
1,670.00 MPaNA
Cesium Metal
0.14 3490
6.8.1 Vickers Hardness
1,760.00 MPaNA
Palladium Metal
121 3430
6.10 Speed of Sound
4,825.00 m/sNA
Thallium Metal
818 16200
7.4 Optical Properties
7.4.1 Refractive Index
NANA
Mercury Metal
1.000933 1.7229
7.5.1 Reflectivity
78.00 %NA
Molybdenum Metal
58 97
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
Ir
Db
8.2 Isotopes
8.2.1 Known Isotopes
3410
Tennessine Metal
0 38
9.2 Electronegativity
9.2.1 Pauling Electronegativity
2.20NA
Francium Metal
0.7 2.54
9.2.3 Sanderson Electronegativity
NANA
Cesium Metal
0.22 2.56
9.2.6 Allred Rochow Electronegativity
1.55NA
Cesium Metal
0.86 1.82
9.3.1 Mulliken-Jaffe Electronegativity
NANA
Cesium Metal
0.62 2.48
10.2.1 Allen Electronegativity
1.68NA
Cesium Metal
0.659 2.7
10.6 Electropositivity
10.6.1 Pauling Electropositivity
1.80NA
Gold Metal
1.46 3.3
10.7 Ionization Energies
10.7.1 1st Energy Level
880.00 kJ/mol664.80 kJ/mol
Cesium Metal
375.7 26130
10.9.2 2nd Energy Level
1,600.00 kJ/mol1,546.70 kJ/mol
Ruthenium Metal
710.2162 28750
10.10.1 3rd Energy Level
NA2,378.40 kJ/mol
Osmium Metal
1600 34230
10.10.3 4th Energy Level
NA3,298.80 kJ/mol
Thorium Metal
2780 37066
10.11.3 5th Energy Level
NA4,305.20 kJ/mol
Tin
4305.2 97510
10.11.5 6th Energy Level
NANA
Seaborgium Metal
5715.8 105800
10.12.1 7th Energy level
NANA
Bohrium Metal
7226.8 114300
10.13.1 8th Energy Level
NANA
Hassium Metal
8857.4 125300
11.1.2 9th Energy Level
NANA
Yttrium Metal
14110 134700
11.2.3 10th Energy Level
NANA
Strontium Metal
17100 144300
11.2.5 11th Energy Level
NANA
Yttrium Metal
19900 169988
11.3.3 12th Energy Level
NANA
Molybdenum Metal
22219 189368
11.3.5 13th Energy Level
NANA
Molybdenum Metal
26930 76015
11.3.6 14th Energy Level
NANA
Molybdenum Metal
29196 86450
11.3.8 15th Energy Level
NANA
Manganese Metal
41987 97510
12.1.1 16th Energy Level
NANA
Iron Metal
47206 109480
12.1.2 17th Energy Level
NANA
Cobalt Metal
52737 122200
12.2.1 18th Energy Level
NANA
Nickel Metal
58570 134810
12.3.1 19th Energy Level
NANA
Copper Metal
64702 148700
12.3.2 20th Energy Level
NANA
Molybdenum Metal
80400 171200
12.4.1 21st Energy Level
NANA
Molybdenum Metal
87000 179100
12.4.2 22nd Energy Level
NANA
Molybdenum Metal
93400 184900
12.5.1 23rd Energy Level
NANA
Molybdenum Metal
98420 198800
12.5.2 24th Energy Level
NANA
Molybdenum Metal
104400 195200
12.6.2 25th Energy Level
NANA
Molybdenum Metal
121900 121900
12.6.3 26th Energy Level
NANA
Molybdenum Metal
127700 127700
12.6.5 27th Energy Level
NANA
Molybdenum Metal
133800 133800
12.6.6 28th Energy Level
NANA
Molybdenum Metal
139800 139800
12.6.7 29th Energy Level
NANA
Molybdenum Metal
148100 148100
12.6.9 30th Energy Level
NANA
Molybdenum Metal
154500 154500
12.7 Electrochemical Equivalent
1.14 g/amp-hrNA
Beryllium Metal
0.16812 8.3209
12.9 Electron Work Function
4.55 eVNA
Cesium Metal
2.14 5.65
12.10 Other Chemical Properties
Flammable, Ionization, Radioactive Isotopes, Radioactivity
Ionization, Radioactive Isotopes, Radioactivity
13 Atomic
13.1 Atomic Number
77105
Lithium Metal
3 117
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
74105
Lithium Metal
3 117
13.4.2 Number of Neutrons
110157
Lithium Metal
4 184
13.4.3 Number of Electrons
74105
Lithium Metal
3 117
13.5 Radius of an Atom
13.5.1 Atomic Radius
136.00 pm139.00 pm
Beryllium Metal
112 265
13.5.2 Covalent Radius
141.00 pm149.00 pm
Beryllium Metal
96 260
13.5.3 Van der Waals Radius
202.00 pmNA
Zinc Metal
139 348
13.6 Atomic Weight
192.22 amu268.00 amu
Lithium Metal
6.94 294
13.7 Atomic Volume
9.53 cm3/molNA
Manganese Metal
1.39 71.07
13.8 Adjacent Atomic Numbers
13.8.1 Previous Element
13.8.2 Next Element
13.9 Valence Electron Potential
140.00 (-eV)NA
Francium Metal
8 392.42
13.10 Lattice Constant
383.90 pmNA
Beryllium Metal
228.58 891.25
13.11 Lattice Angles
π/2, π/2, π/2
NA
13.12 Lattice C/A Ratio
NANA
Beryllium Metal
1.567 1.886
14 Mechanical
14.1 Density
14.1.1 Density At Room Temperature
22.56 g/cm329.30 g/cm3
Lithium Metal
0.534 40.7
14.1.2 Density When Liquid (at m.p.)
19.00 g/cm3NA
Lithium Metal
0.512 20
14.2 Tensile Strength
2,000.00 MPaNA
Indium Metal
2.5 11000
14.3 Viscosity
NANA
Mercury Metal
0.001526 0.001526
14.4 Vapor Pressure
14.4.1 Vapor Pressure at 1000 K
NANA
Cerium Metal
2.47E-11 121
14.4.2 Vapor Pressure at 2000 K
0.00 (Pa)NA
Tungsten Metal
2.62E-10 774
14.5 Elasticity properties
14.5.1 Shear Modulus
210.00 GPaNA
Potassium Metal
1.3 222
14.5.2 Bulk Modulus
320.00 GPaNA
Cesium Metal
1.6 462
14.5.3 Young's Modulus
528.00 GPaNA
Cesium Metal
1.7 528
14.6 Poisson Ratio
0.26NA
Beryllium Metal
0.032 0.47
14.7 Other Mechanical Properties
NA
Unknown
15 Magnetic
15.1 Magnetic Characteristics
15.1.1 Specific Gravity
21.78NA
Lithium Metal
0.53 4500
15.1.2 Magnetic Ordering
Paramagnetic
Unknown
15.1.3 Permeability
NANA
Bismuth Metal
1.25643E-06 0.0063
15.1.4 Susceptibility
NANA
Bismuth Metal
-0.000166 200000
15.2 Electrical Properties
15.2.1 Electrical Property
Conductor
Unknown
15.2.2 Resistivity
47.10 nΩ·mNA
Thallium Metal
0.18 961
15.2.3 Electrical Conductivity
0.19 106/cm ΩNA
Plutonium Metal
0.00666 0.63
15.2.4 Electron Affinity
151.00 kJ/molNA
Mercury Metal
0 222.8
16 Thermal
16.1 Specific Heat
0.13 J/(kg K)NA
Americium Metal
0.11 3.6
16.2 Molar Heat Capacity
25.10 J/mol·KNA
Beryllium Metal
16.443 62.7
16.3 Thermal Conductivity
147.00 W/m·KNA
Neptunium Metal
6.3 429
16.4 Critical Temperature
NANA
Ytterbium Metal
26.3 3223
16.5 Thermal Expansion
6.40 µm/(m·K)NA
Tungsten Metal
4.5 97
16.6 Enthalpy
16.6.1 Enthalpy of Vaporization
799.10 kJ/molNA
Zinc Metal
7.32 799.1
16.6.2 Enthalpy of Fusion
35.23 kJ/molNA
Cesium Metal
2.1 35.23
16.6.3 Enthalpy of Atomization
837.00 kJ/molNA
Mercury Metal
61.5 837
16.7 Standard Molar Entropy
35.50 J/mol.KNA
Beryllium Metal
9.5 198.1