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Einsteinium Iridium Comparison

Einsteinium
Iridium
Iridium Einsteinium comparison


Periodic Table
Symbol
Es  
Ir  
Group Number
13  
5
9  
9
Period Number
7  
6  
Block
f block  
d block  
Element Family
Actinide  
Transition Metal  
CAS Number
7429927  
99+
7439885  
99+
Space Group Name
-  
Fm_ 3m  
Space Group Number
194.00  
7
225.00  
3
Facts
Interesting Facts
  • Einsteinium is the transuranic element found in US.
  • Only 0.01 mg of Einsteinium was synthesized in 1961.
  
  • Iridium element occurs as natural alloys of Platinum and Osmium.
  • Iridium element is known as the most corrosion resistance metal .
  
Sources
Made by Bombarding Uranium with Neutrons  
Found in Minerals, Mining, Ores of Minerals  
History
  
  
Who Discovered
Lawrence Berkeley National Laboratory  
Smithson Tennant  
Discovery
In 1952  
In 1803  
Abundance
  
  
Abundance In Universe
0.00 %  
35
0.00 %  
23
Abundance In Sun
0.00 %  
30
0.00 %  
25
Abundance In Meteorites
0.00 %  
99+
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
  • Currently known uses of Einsteinium metal are limited to research purpose only.
  
  • 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
-  
Automobile Industry, Electrical Industry, Electronic Industry  
Medical Uses
-  
-  
Other Uses
Alloys, Nuclear Research, Research Purposes  
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
860.00 °C  
99+
2,410.00 °C  
7
Boiling Point
996.00 °C  
99+
4,527.00 °C  
10
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silver  
Silvery White  
Luster
-  
Metallic  
Hardness
  
  
Mohs Hardness
6.00  
6
6.50  
5
Brinell Hardness
240.00 MPa  
99+
1,670.00 MPa  
5
Vickers Hardness
550.00 MPa  
31
1,760.00 MPa  
8
Speed of Sound
2,850.00 m/s  
40
4,825.00 m/s  
17
Optical Properties
  
  
Refractive Index
1.30  
99+
2.40  
7
Reflectivity
63.00 %  
20
78.00 %  
8
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Es  
Ir  
Isotopes
  
  
Known Isotopes
16  
23
34  
5
Electronegativity
  
  
Pauling Electronegativity
1.54  
27
2.20  
5
Sanderson Electronegativity
1.30  
25
2.20  
8
Allred Rochow Electronegativity
1.20  
28
1.55  
12
Mulliken-Jaffe Electronegativity
1.30  
33
2.20  
6
Allen Electronegativity
1.30  
40
1.68  
20
Electropositivity
  
  
Pauling Electropositivity
2.70  
22
1.80  
99+
Ionization Energies
  
  
1st Energy Level
619.00 kJ/mol  
99+
880.00 kJ/mol  
9
2nd Energy Level
1,216.00 kJ/mol  
99+
1,600.00 kJ/mol  
36
3rd Energy Level
2,334.00 kJ/mol  
99+
2,256.10 kJ/mol  
99+
4th Energy Level
3,734.00 kJ/mol  
99+
880.00 kJ/mol  
99+
5th Energy Level
6,190.00 kJ/mol  
40
8,800.00 kJ/mol  
8
6th Energy Level
6,190.00 kJ/mol  
99+
8,800.00 kJ/mol  
25
7th Energy level
6,190.00 kJ/mol  
99+
8,800.00 kJ/mol  
22
8th Energy Level
6,190.00 kJ/mol  
99+
8,800.00 kJ/mol  
22
9th Energy Level
4,520.00 kJ/mol  
99+
8,800.00 kJ/mol  
21
10th Energy Level
6,190.00 kJ/mol  
99+
8,800.00 kJ/mol  
23
11th Energy Level
6,190.00 kJ/mol  
99+
8,800.00 kJ/mol  
20
12th Energy Level
61,900.00 kJ/mol  
12
8,800.00 kJ/mol  
40
13th Energy Level
6,190.00 kJ/mol  
39
8,800.00 kJ/mol  
15
14th Energy Level
6,190.00 kJ/mol  
28
8,800.00 kJ/mol  
14
15th Energy Level
61,900.00 kJ/mol  
40
88,000.00 kJ/mol  
8
16th Energy Level
61,900.00 kJ/mol  
30
88,000.00 kJ/mol  
9
17th Energy Level
619.00 kJ/mol  
99+
880.00 kJ/mol  
26
18th Energy Level
6,190.00 kJ/mol  
99+
8,800.00 kJ/mol  
15
19th Energy Level
619.00 kJ/mol  
99+
880.00 kJ/mol  
24
20th Energy Level
619.00 kJ/mol  
99+
880.00 kJ/mol  
14
21st Energy Level
6,190.00 kJ/mol  
15
880.00 kJ/mol  
37
22nd Energy Level
619.00 kJ/mol  
38
880.00 kJ/mol  
12
23rd Energy Level
6,190.00 kJ/mol  
15
8,800.00 kJ/mol  
7
24th Energy Level
619.40 kJ/mol  
40
880.00 kJ/mol  
8
25th Energy Level
619.00 kJ/mol  
99+
880.00 kJ/mol  
6
26th Energy Level
619.40 kJ/mol  
40
880.00 kJ/mol  
6
27th Energy Level
619.40 kJ/mol  
99+
880.00 kJ/mol  
5
28th Energy Level
619.40 kJ/mol  
99+
880.00 kJ/mol  
8
29th Energy Level
619.40 kJ/mol  
99+
880.00 kJ/mol  
9
30th Energy Level
619.40 kJ/mol  
99+
880.00 kJ/mol  
6
Electrochemical Equivalent
4.74 g/amp-hr  
5
1.14 g/amp-hr  
99+
Electron Work Function
4.90 eV  
12
4.55 eV  
18
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity  
Flammable, Ionization, Radioactive Isotopes, Radioactivity  
Atomic
Atomic Number
99  
19
77  
39
Electron Configuration
[Rn] 5f11 7s2  
[Xe] 4f14 5d7 6s2  
Crystal Structure
Face Centered Cubic (FCC)  
Face Centered Cubic (FCC)  
Crystal Lattice
FCC-Crystal-Structure-of-Einsteinium.jpg#100  
FCC-Crystal-Structure-of-Iridium.jpg#100  
Atom
  
  
Number of Protons
99  
19
74  
99+
Number of Neutrons
153  
10
110  
28
Number of Electrons
99  
19
74  
99+
Radius of an Atom
  
  
Atomic Radius
186.00 pm  
11
136.00 pm  
99+
Covalent Radius
186.00 pm  
21
141.00 pm  
99+
Van der Waals Radius
0.00 pm  
99+
202.00 pm  
34
Atomic Weight
252.00 amu  
16
192.22 amu  
34
Atomic Volume
17.04 cm3/mol  
99+
9.53 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Californium
  
Osmium
  
Next Element
Fermium
  
Platinum
  
Valence Electron Potential
0.00 (-eV)  
99+
140.00 (-eV)  
5
Lattice Constant
582.00 pm  
8
383.90 pm  
29
Lattice Angles
-  
π/2, π/2, π/2  
Lattice C/A Ratio
1.29  
99+
1.58  
35
Mechanical
Density
  
  
Density At Room Temperature
8.84 g/cm3  
99+
22.56 g/cm3  
10
Density When Liquid (at m.p.)
8.84 g/cm3  
99+
19.00 g/cm3  
13
Tensile Strength
0.10 MPa  
99+
2,000.00 MPa  
2
Viscosity
0.00  
25
0.00  
21
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
22
0.00 (Pa)  
37
Vapor Pressure at 2000 K
0.00 (Pa)  
24
0.00 (Pa)  
26
Elasticity properties
  
  
Shear Modulus
30.00 GPa  
27
210.00 GPa  
2
Bulk Modulus
40.00 GPa  
38
320.00 GPa  
3
Young's Modulus
0.00 GPa  
99+
528.00 GPa  
1
Poisson Ratio
0.33  
11
0.26  
22
Other Mechanical Properties
-  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
8.84  
99+
21.78  
12
Magnetic Ordering
Paramagnetic  
Paramagnetic  
Permeability
0.00 H/m  
17
0.00 H/m  
16
Susceptibility
0.00  
24
0.00  
5
Electrical Properties
  
  
Electrical Property
-  
Conductor  
Resistivity
6.30 nΩ·m  
99+
47.10 nΩ·m  
99+
Electrical Conductivity
0.14 106/cm Ω  
15
0.19 106/cm Ω  
10
Electron Affinity
0.00 kJ/mol  
99+
151.00 kJ/mol  
4
Thermal
Specific Heat
0.10 J/(kg K)  
99+
0.13 J/(kg K)  
40
Molar Heat Capacity
27.20 J/mol·K  
24
25.10 J/mol·K  
99+
Thermal Conductivity
0.00 W/m·K  
99+
147.00 W/m·K  
10
Critical Temperature
1,133.00 K  
99+
2,719.00 K  
8
Thermal Expansion
13.50 µm/(m·K)  
33
6.40 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
323.80 kJ/mol  
99+
799.10 kJ/mol  
1
Enthalpy of Fusion
14.80 kJ/mol  
24
35.23 kJ/mol  
1
Enthalpy of Atomization
-  
837.00 kJ/mol  
1
Standard Molar Entropy
63.00 J/mol.K  
24
35.50 J/mol.K  
99+
Summary >>
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