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Plutonium Iridium Comparison

Plutonium
Iridium
Iridium Plutonium comparison


Periodic Table
Symbol
Pu  
Ir  
Group Number
0  
18
9  
9
Period Number
7  
6  
Block
f block  
d block  
Element Family
Actinide  
Transition Metal  
CAS Number
7440075  
99+
7439885  
99+
Space Group Name
P121/m1  
Fm_ 3m  
Space Group Number
11.00  
16
225.00  
3
Facts
Interesting Facts
  • Plutonium metal if obtain from ores of uranium metal.
  • Plutonium metal is very sensitive to the change in atmospheric conditions like temperature and pressure.
  
  • Iridium element occurs as natural alloys of Platinum and Osmium.
  • Iridium element is known as the most corrosion resistance metal .
  
Sources
Mining, Ores of metals  
Found in Minerals, Mining, Ores of Minerals  
History
  
  
Who Discovered
Glenn T. Seaborg, Arthur Wahl, Joseph W. Kennedy, Edwin McMillan  
Smithson Tennant  
Discovery
In Between 1940 1941  
In 1803  
Abundance
  
  
Abundance In Universe
0.00 %  
40
0.00 %  
23
Abundance In Sun
0.00 %  
21
0.00 %  
25
Abundance In Meteorites
-  
0.00 %  
29
Abundance In Earth's Crust
0.00 %  
99+
0.00 %  
99+
Abundance In Oceans
-  
-  
Abundance In Humans
0.00 %  
24
0.00 %  
24
Uses
Uses & Benefits
  • Plutonium was used in atomic bombs and still it is being used in various weapons and Ammunition industry.
  • It is also used in nuclear power plant as source of energy for space missions.
  
  • 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.
  
Industrial Uses
Aerospace Industry, Ammunition Industry  
Automobile Industry, Electrical Industry, Electronic Industry  
Medical Uses
-  
-  
Other Uses
Alloys  
Alloys  
Biological Properties
  
  
Toxicity
Toxic  
Toxic  
Present in Human Body
No  
Yes  
In Blood
0.00 Blood/mg dm-3  
40
0.00 Blood/mg dm-3  
40
In Bone
0.00 p.p.m.  
99+
0.00 p.p.m.  
99+
Physical
Melting Point
639.50 °C  
99+
2,410.00 °C  
7
Boiling Point
3,235.00 °C  
25
4,527.00 °C  
10
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery White  
Silvery White  
Luster
-  
Metallic  
Hardness
  
  
Mohs Hardness
4.00  
11
6.50  
5
Brinell Hardness
627.00 MPa  
22
1,670.00 MPa  
5
Vickers Hardness
617.00 MPa  
26
1,760.00 MPa  
8
Speed of Sound
2,260.00 m/s  
99+
4,825.00 m/s  
17
Optical Properties
  
  
Refractive Index
1.90  
18
2.40  
7
Reflectivity
68.00 %  
15
78.00 %  
8
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Pu  
Ir  
Isotopes
  
  
Known Isotopes
20  
19
34  
5
Electronegativity
  
  
Pauling Electronegativity
1.28  
34
2.20  
5
Sanderson Electronegativity
1.28  
26
2.20  
8
Allred Rochow Electronegativity
1.22  
27
1.55  
12
Mulliken-Jaffe Electronegativity
1.30  
33
2.20  
6
Allen Electronegativity
1.28  
99+
1.68  
20
Electropositivity
  
  
Pauling Electropositivity
2.72  
21
1.80  
99+
Ionization Energies
  
  
1st Energy Level
584.70 kJ/mol  
99+
880.00 kJ/mol  
9
2nd Energy Level
1,128.00 kJ/mol  
99+
1,600.00 kJ/mol  
36
3rd Energy Level
2,084.00 kJ/mol  
99+
2,256.10 kJ/mol  
99+
4th Energy Level
3,338.00 kJ/mol  
99+
880.00 kJ/mol  
99+
5th Energy Level
5,847.00 kJ/mol  
99+
8,800.00 kJ/mol  
8
6th Energy Level
5,847.00 kJ/mol  
99+
8,800.00 kJ/mol  
25
7th Energy level
5,840.00 kJ/mol  
99+
8,800.00 kJ/mol  
22
8th Energy Level
5,840.00 kJ/mol  
99+
8,800.00 kJ/mol  
22
9th Energy Level
5,840.00 kJ/mol  
99+
8,800.00 kJ/mol  
21
10th Energy Level
5,840.00 kJ/mol  
99+
8,800.00 kJ/mol  
23
11th Energy Level
5,840.00 kJ/mol  
99+
8,800.00 kJ/mol  
20
12th Energy Level
58,400.00 kJ/mol  
18
8,800.00 kJ/mol  
40
13th Energy Level
5,840.00 kJ/mol  
99+
8,800.00 kJ/mol  
15
14th Energy Level
5,840.00 kJ/mol  
39
8,800.00 kJ/mol  
14
15th Energy Level
58,400.00 kJ/mol  
99+
88,000.00 kJ/mol  
8
16th Energy Level
58,400.00 kJ/mol  
40
88,000.00 kJ/mol  
9
17th Energy Level
584.70 kJ/mol  
99+
880.00 kJ/mol  
26
18th Energy Level
5,840.00 kJ/mol  
99+
8,800.00 kJ/mol  
15
19th Energy Level
584.70 kJ/mol  
99+
880.00 kJ/mol  
24
20th Energy Level
584.00 kJ/mol  
99+
880.00 kJ/mol  
14
21st Energy Level
584.70 kJ/mol  
99+
880.00 kJ/mol  
37
22nd Energy Level
584.00 kJ/mol  
99+
880.00 kJ/mol  
12
23rd Energy Level
584.70 kJ/mol  
99+
8,800.00 kJ/mol  
7
24th Energy Level
584.70 kJ/mol  
99+
880.00 kJ/mol  
8
25th Energy Level
584.70 kJ/mol  
99+
880.00 kJ/mol  
6
26th Energy Level
584.70 kJ/mol  
99+
880.00 kJ/mol  
6
27th Energy Level
584.70 kJ/mol  
99+
880.00 kJ/mol  
5
28th Energy Level
584.70 kJ/mol  
99+
880.00 kJ/mol  
8
29th Energy Level
584.70 kJ/mol  
99+
880.00 kJ/mol  
9
30th Energy Level
584.00 kJ/mol  
99+
880.00 kJ/mol  
6
Electrochemical Equivalent
2.28 g/amp-hr  
26
1.14 g/amp-hr  
99+
Electron Work Function
3.88 eV  
38
4.55 eV  
18
Other Chemical Properties
Corrosion, Ionization, Radioactive Isotopes, Radioactivity  
Flammable, Ionization, Radioactive Isotopes, Radioactivity  
Atomic
Atomic Number
94  
24
77  
39
Electron Configuration
[Rn] 5f6 7s2  
[Xe] 4f14 5d7 6s2  
Crystal Structure
Monoclinic (MON)  
Face Centered Cubic (FCC)  
Crystal Lattice
MON-Crystal-Structure-of-Plutonium.jpg#100  
FCC-Crystal-Structure-of-Iridium.jpg#100  
Atom
  
  
Number of Protons
94  
24
74  
99+
Number of Neutrons
150  
12
110  
28
Number of Electrons
94  
24
74  
99+
Radius of an Atom
  
  
Atomic Radius
159.00 pm  
30
136.00 pm  
99+
Covalent Radius
187.00 pm  
20
141.00 pm  
99+
Van der Waals Radius
200.00 pm  
35
202.00 pm  
34
Atomic Weight
244.00 amu  
19
192.22 amu  
34
Atomic Volume
12.32 cm3/mol  
99+
9.53 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Neptunium
  
Osmium
  
Next Element
Americium
  
Platinum
  
Valence Electron Potential
64.90 (-eV)  
21
140.00 (-eV)  
5
Lattice Constant
618.30 pm  
4
383.90 pm  
29
Lattice Angles
-  
π/2, π/2, π/2  
Lattice C/A Ratio
1.74  
6
1.58  
35
Mechanical
Density
  
  
Density At Room Temperature
19.82 g/cm3  
13
22.56 g/cm3  
10
Density When Liquid (at m.p.)
16.63 g/cm3  
18
19.00 g/cm3  
13
Tensile Strength
40.00 MPa  
99+
2,000.00 MPa  
2
Viscosity
0.00  
25
0.00  
21
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
28
0.00 (Pa)  
37
Vapor Pressure at 2000 K
2.20 (Pa)  
12
0.00 (Pa)  
26
Elasticity properties
  
  
Shear Modulus
43.00 GPa  
18
210.00 GPa  
2
Bulk Modulus
100.00 GPa  
16
320.00 GPa  
3
Young's Modulus
96.00 GPa  
23
528.00 GPa  
1
Poisson Ratio
0.21  
33
0.26  
22
Other Mechanical Properties
Ductile, Malleable  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
19.84  
16
21.78  
12
Magnetic Ordering
Paramagnetic  
Paramagnetic  
Permeability
0.00 H/m  
16
0.00 H/m  
16
Susceptibility
0.00  
21
0.00  
5
Electrical Properties
  
  
Electrical Property
Poor Conductor  
Conductor  
Resistivity
1.46 nΩ·m  
99+
47.10 nΩ·m  
99+
Electrical Conductivity
0.01 106/cm Ω  
99+
0.19 106/cm Ω  
10
Electron Affinity
0.60 kJ/mol  
99+
151.00 kJ/mol  
4
Thermal
Specific Heat
0.13 J/(kg K)  
40
0.13 J/(kg K)  
40
Molar Heat Capacity
35.50 J/mol·K  
4
25.10 J/mol·K  
99+
Thermal Conductivity
6.74 W/m·K  
99+
147.00 W/m·K  
10
Critical Temperature
913.00 K  
99+
2,719.00 K  
8
Thermal Expansion
46.70 µm/(m·K)  
6
6.40 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
344.00 kJ/mol  
36
799.10 kJ/mol  
1
Enthalpy of Fusion
2.82 kJ/mol  
99+
35.23 kJ/mol  
1
Enthalpy of Atomization
360.00 kJ/mol  
35
837.00 kJ/mol  
1
Standard Molar Entropy
37.10 J/mol.K  
99+
35.50 J/mol.K  
99+
Summary >>
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