Home
 Compare Metals

Iridium vs Uranium

Iridium
Uranium
Uranium vs Iridium


Periodic Table
Symbol
Ir  
U  
Group Number
9  
9
0  
18
Period Number
6  
7  
Block
d block  
f block  
Element Family
Transition Metal  
Actinide  
CAS Number
7439885  
99+
7440611  
28
Space Group Name
Fm_ 3m  
Cmcm  
Space Group Number
225.00  
3
63.00  
13
Facts
Interesting Facts
  • Iridium element occurs as natural alloys of Platinum and Osmium.
  • Iridium element is known as the most corrosion resistance metal .
  
  • Major mining countries of Uranium include Russia, Australia, Namibia, Canada and Niger and total 33% Uranium are mine in Kazakhstan.
  
Sources
Found in Minerals, Mining, Ores of Minerals  
Earth's crust, Mining, Ores of Minerals  
History
  
  
Who Discovered
Smithson Tennant  
-  
Discovery
In 1803  
In 1789  
Abundance
  
  
Abundance In Universe
0.00 %  
23
0.00 %  
30
Abundance In Sun
0.00 %  
25
0.00 %  
26
Abundance In Meteorites
0.00 %  
29
0.00 %  
99+
Abundance In Earth's Crust
0.00 %  
99+
0.00 %  
36
Abundance In Oceans
-  
0.00 %  
11
Abundance In Humans
0.00 %  
24
0.00 %  
24
Uses
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.
  
  • The main use of this metal include nuclear fuel which is used to generate electricity yin nuclear power stations.
  • Synthetic elements like transuranium are made from Uranium metal.
  
Industrial Uses
Automobile Industry, Electrical Industry, Electronic Industry  
Ammunition Industry, Chemical Industry  
Medical Uses
-  
-  
Other Uses
Alloys  
Alloys, Jewellery, Nuclear Reactor's Fuel, Sculptures, Statues  
Biological Properties
  
  
Toxicity
Toxic  
Toxic  
Present in Human Body
Yes  
No  
In Blood
0.00 Blood/mg dm-3  
40
0.00 Blood/mg dm-3  
37
In Bone
0.00 p.p.m.  
99+
1.20 p.p.m.  
19
Physical
Melting Point
2,410.00 °C  
7
1,132.00 °C  
39
Boiling Point
4,527.00 °C  
10
3,818.00 °C  
16
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery White  
Silvery Gray  
Luster
Metallic  
Metallic  
Hardness
  
  
Mohs Hardness
6.50  
5
6.00  
6
Brinell Hardness
1,670.00 MPa  
5
2,350.00 MPa  
2
Vickers Hardness
1,760.00 MPa  
8
1,960.00 MPa  
6
Speed of Sound
4,825.00 m/s  
17
3,155.00 m/s  
36
Optical Properties
  
  
Refractive Index
2.40  
7
1.38  
40
Reflectivity
78.00 %  
8
80.00 %  
7
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Ir  
U  
Isotopes
  
  
Known Isotopes
34  
5
25  
14
Electronegativity
  
  
Pauling Electronegativity
2.20  
5
1.38  
29
Sanderson Electronegativity
2.20  
8
1.38  
22
Allred Rochow Electronegativity
1.55  
12
1.22  
27
Mulliken-Jaffe Electronegativity
2.20  
6
1.38  
29
Allen Electronegativity
1.68  
20
1.38  
36
Electropositivity
  
  
Pauling Electropositivity
1.80  
99+
2.62  
26
Ionization Energies
  
  
1st Energy Level
880.00 kJ/mol  
9
597.60 kJ/mol  
99+
2nd Energy Level
1,600.00 kJ/mol  
36
1,420.00 kJ/mol  
99+
3rd Energy Level
2,256.10 kJ/mol  
99+
1,900.00 kJ/mol  
99+
4th Energy Level
880.00 kJ/mol  
99+
3,145.00 kJ/mol  
99+
5th Energy Level
8,800.00 kJ/mol  
8
5,976.00 kJ/mol  
99+
6th Energy Level
8,800.00 kJ/mol  
25
5,976.00 kJ/mol  
99+
7th Energy level
8,800.00 kJ/mol  
22
5,970.00 kJ/mol  
99+
8th Energy Level
8,800.00 kJ/mol  
22
5,976.00 kJ/mol  
99+
9th Energy Level
8,800.00 kJ/mol  
21
5,976.00 kJ/mol  
99+
10th Energy Level
8,800.00 kJ/mol  
23
5,976.00 kJ/mol  
99+
11th Energy Level
8,800.00 kJ/mol  
20
5,976.00 kJ/mol  
99+
12th Energy Level
8,800.00 kJ/mol  
40
5,970.00 kJ/mol  
99+
13th Energy Level
8,800.00 kJ/mol  
15
5,970.00 kJ/mol  
99+
14th Energy Level
8,800.00 kJ/mol  
14
5,970.00 kJ/mol  
34
15th Energy Level
88,000.00 kJ/mol  
8
59,700.00 kJ/mol  
99+
16th Energy Level
88,000.00 kJ/mol  
9
59,700.00 kJ/mol  
35
17th Energy Level
880.00 kJ/mol  
26
597.60 kJ/mol  
99+
18th Energy Level
8,800.00 kJ/mol  
15
5,976.00 kJ/mol  
99+
19th Energy Level
880.00 kJ/mol  
24
597.60 kJ/mol  
99+
20th Energy Level
880.00 kJ/mol  
14
597.00 kJ/mol  
99+
21st Energy Level
880.00 kJ/mol  
37
597.60 kJ/mol  
99+
22nd Energy Level
880.00 kJ/mol  
12
597.00 kJ/mol  
99+
23rd Energy Level
8,800.00 kJ/mol  
7
597.60 kJ/mol  
99+
24th Energy Level
880.00 kJ/mol  
8
597.60 kJ/mol  
99+
25th Energy Level
880.00 kJ/mol  
6
597.60 kJ/mol  
99+
26th Energy Level
880.00 kJ/mol  
6
597.60 kJ/mol  
99+
27th Energy Level
880.00 kJ/mol  
5
597.60 kJ/mol  
99+
28th Energy Level
880.00 kJ/mol  
8
597.60 kJ/mol  
99+
29th Energy Level
880.00 kJ/mol  
9
597.60 kJ/mol  
99+
30th Energy Level
880.00 kJ/mol  
6
597.60 kJ/mol  
99+
Electrochemical Equivalent
1.14 g/amp-hr  
99+
1.48 g/amp-hr  
99+
Electron Work Function
4.55 eV  
18
3.63 eV  
99+
Other Chemical Properties
Flammable, Ionization, Radioactive Isotopes, Radioactivity  
Ionization, Radioactive Isotopes, Radioactivity  
Atomic
Atomic Number
77  
39
92  
26
Electron Configuration
[Xe] 4f14 5d7 6s2  
[Rn] 5f3 6d1 7s2  
Crystal Structure
Face Centered Cubic (FCC)  
Orthorhombic (ORTH)  
Crystal Lattice
FCC-Crystal-Structure-of-Iridium.jpg#100  
ORTH-Crystal-Structure-of-Uranium.jpg#100  
Atom
  
  
Number of Protons
74  
99+
92  
26
Number of Neutrons
110  
28
146  
14
Number of Electrons
74  
99+
92  
26
Radius of an Atom
  
  
Atomic Radius
136.00 pm  
99+
156.00 pm  
31
Covalent Radius
141.00 pm  
99+
196.00 pm  
14
Van der Waals Radius
202.00 pm  
34
186.00 pm  
40
Atomic Weight
192.22 amu  
34
238.03 amu  
21
Atomic Volume
9.53 cm3/mol  
99+
12.59 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Osmium
  
Protactinium
  
Next Element
Platinum
  
Neptunium
  
Valence Electron Potential
140.00 (-eV)  
5
170.00 (-eV)  
4
Lattice Constant
383.90 pm  
29
295.08 pm  
99+
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, π/2  
Lattice C/A Ratio
1.58  
35
1.02  
99+
Mechanical
Density
  
  
Density At Room Temperature
22.56 g/cm3  
10
19.10 g/cm3  
17
Density When Liquid (at m.p.)
19.00 g/cm3  
13
17.30 g/cm3  
17
Tensile Strength
2,000.00 MPa  
2
100.00 MPa  
28
Viscosity
0.00  
21
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)  
26
0.01 (Pa)  
20
Elasticity properties
  
  
Shear Modulus
210.00 GPa  
2
111.00 GPa  
10
Bulk Modulus
320.00 GPa  
3
100.00 GPa  
16
Young's Modulus
528.00 GPa  
1
208.00 GPa  
11
Poisson Ratio
0.26  
22
0.23  
30
Other Mechanical Properties
-  
Ductile, Malleable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
21.78  
12
18.80  
19
Magnetic Ordering
Paramagnetic  
Paramagnetic  
Permeability
0.00 H/m  
16
0.00 H/m  
16
Susceptibility
0.00  
5
0.00  
24
Electrical Properties
  
  
Electrical Property
Conductor  
Poor Conductor  
Resistivity
47.10 nΩ·m  
99+
0.28 nΩ·m  
99+
Electrical Conductivity
0.19 106/cm Ω  
10
0.04 106/cm Ω  
99+
Electron Affinity
151.00 kJ/mol  
4
50.60 kJ/mol  
25
Thermal
Specific Heat
0.13 J/(kg K)  
40
0.12 J/(kg K)  
99+
Molar Heat Capacity
25.10 J/mol·K  
99+
27.67 J/mol·K  
18
Thermal Conductivity
147.00 W/m·K  
10
27.50 W/m·K  
99+
Critical Temperature
2,719.00 K  
8
1,405.00 K  
99+
Thermal Expansion
6.40 µm/(m·K)  
99+
13.90 µm/(m·K)  
30
Enthalpy
  
  
Enthalpy of Vaporization
799.10 kJ/mol  
1
477.00 kJ/mol  
18
Enthalpy of Fusion
35.23 kJ/mol  
1
15.48 kJ/mol  
19
Enthalpy of Atomization
837.00 kJ/mol  
1
489.50 kJ/mol  
18
Standard Molar Entropy
35.50 J/mol.K  
99+
50.20 J/mol.K  
99+
Periodic Table >>
<< All

Compare Transition Metals

Transition Metals

Transition Metals

» More Transition Metals

Compare Transition Metals

» More Compare Transition Metals
Home | About | Contact | Disclaimer | Terms of use
© A softusvista inc. venture!