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Einsteinium vs Silver


Silver vs Einsteinium


Periodic Table

Symbol
Es  
Ag  

Group Number
13  
5
11  
7

Period Number
7  
5  

Block
f block  
d block  

Element Family
Actinide  
Transition Metal  

CAS Number
7429927  
99+
7440224  
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.
  
  • 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.
  

Sources
Made by Bombarding Uranium with Neutrons  
Earth's crust, Found in Minerals, Ores of metals  

History
  
  

Who Discovered
Lawrence Berkeley National Laboratory  
-  

Discovery
In 1952  
Before 5000 BC  

Abundance
  
  

Abundance In Universe
0.00 %  
35
0.00 %  
27

Abundance In Sun
0.00 %  
30
0.00 %  
26

Abundance In Meteorites
0.00 %  
99+
0.00 %  
38

Abundance In Earth's Crust
0.00 %  
99+
0.00 %  
99+

Abundance In Oceans
-  
0.00 %  
19

Abundance In Humans
0.00 %  
24
0.00 %  
24

Uses

Uses & Benefits
  • Currently known uses of Einsteinium metal are limited to research purpose only.
  
  • Silver is mainly used for Jewelry and show piece.
  • It is used for manufacturing high quality mirrors due to its reflectivity property.
  

Industrial Uses
-  
Chemical Industry, Clothing Industry, Electrical Industry  

Medical Uses
-  
Dentistry, Pharmaceutical Industry  

Other Uses
Alloys, Nuclear Research, Research Purposes  
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues  

Biological Properties
  
  

Toxicity
Toxic  
Non Toxic  

Present in Human Body
No  
Yes  

In Blood
0.00 Blood/mg dm-3  
40
0.00 Blood/mg dm-3  
29

In Bone
0.00 p.p.m.  
99+
0.44 p.p.m.  
24

Physical

Melting Point
860.00 °C  
99+
961.93 °C  
99+

Boiling Point
996.00 °C  
99+
2,212.00 °C  
99+

Appearance
  
  

Physical State
Solid  
Solid  

Color
Silver  
Silvery White  

Luster
-  
Metallic  

Hardness
  
  

Mohs Hardness
6.00  
6
2.50  
15

Brinell Hardness
240.00 MPa  
99+
251.00 MPa  
99+

Vickers Hardness
550.00 MPa  
31
229.00 MPa  
99+

Speed of Sound
2,850.00 m/s  
40
2,680.00 m/s  
99+

Optical Properties
  
  

Refractive Index
1.30  
99+
0.16  
99+

Reflectivity
63.00 %  
20
97.00 %  
1

Allotropes
No  
No  

α Allotropes
-  
-  

β Allotropes
-  
-  

γ Allotropes
-  
-  

Chemical

Chemical Formula
Es  
Ag  

Isotopes
  
  

Known Isotopes
16  
23
36  
3

Electronegativity
  
  

Pauling Electronegativity
1.54  
27
1.93  
10

Sanderson Electronegativity
1.30  
25
1.83  
14

Allred Rochow Electronegativity
1.20  
28
1.42  
19

Mulliken-Jaffe Electronegativity
1.30  
33
1.47  
28

Allen Electronegativity
1.30  
40
1.87  
10

Electropositivity
  
  

Pauling Electropositivity
2.70  
22
2.07  
99+

Ionization Energies
  
  

1st Energy Level
619.00 kJ/mol  
99+
731.00 kJ/mol  
27

2nd Energy Level
1,216.00 kJ/mol  
99+
2,070.00 kJ/mol  
11

3rd Energy Level
2,334.00 kJ/mol  
99+
3,361.00 kJ/mol  
19

4th Energy Level
3,734.00 kJ/mol  
99+
7,310.00 kJ/mol  
10

5th Energy Level
6,190.00 kJ/mol  
40
7,310.00 kJ/mol  
24

6th Energy Level
6,190.00 kJ/mol  
99+
7,310.00 kJ/mol  
39

7th Energy level
6,190.00 kJ/mol  
99+
7,310.00 kJ/mol  
33

8th Energy Level
6,190.00 kJ/mol  
99+
7,310.00 kJ/mol  
31

9th Energy Level
4,520.00 kJ/mol  
99+
7,310.00 kJ/mol  
27

10th Energy Level
6,190.00 kJ/mol  
99+
7,310.00 kJ/mol  
32

11th Energy Level
6,190.00 kJ/mol  
99+
7,310.00 kJ/mol  
31

12th Energy Level
61,900.00 kJ/mol  
12
7,310.00 kJ/mol  
99+

13th Energy Level
6,190.00 kJ/mol  
39
7,310.00 kJ/mol  
25

14th Energy Level
6,190.00 kJ/mol  
28
731.00 kJ/mol  
99+

15th Energy Level
61,900.00 kJ/mol  
40
73,100.00 kJ/mol  
22

16th Energy Level
61,900.00 kJ/mol  
30
73,100.00 kJ/mol  
17

17th Energy Level
619.00 kJ/mol  
99+
731.00 kJ/mol  
38

18th Energy Level
6,190.00 kJ/mol  
99+
7,310.00 kJ/mol  
28

19th Energy Level
619.00 kJ/mol  
99+
731.00 kJ/mol  
35

20th Energy Level
619.00 kJ/mol  
99+
731.00 kJ/mol  
29

21st Energy Level
6,190.00 kJ/mol  
15
731.00 kJ/mol  
99+

22nd Energy Level
619.00 kJ/mol  
38
731.00 kJ/mol  
23

23rd Energy Level
6,190.00 kJ/mol  
15
731.00 kJ/mol  
99+

24th Energy Level
619.40 kJ/mol  
40
731.00 kJ/mol  
22

25th Energy Level
619.00 kJ/mol  
99+
731.00 kJ/mol  
22

26th Energy Level
619.40 kJ/mol  
40
731.00 kJ/mol  
22

27th Energy Level
619.40 kJ/mol  
99+
731.00 kJ/mol  
21

28th Energy Level
619.40 kJ/mol  
99+
731.00 kJ/mol  
27

29th Energy Level
619.40 kJ/mol  
99+
731.00 kJ/mol  
28

30th Energy Level
619.40 kJ/mol  
99+
731.00 kJ/mol  
22

Electrochemical Equivalent
4.74 g/amp-hr  
5
4.02 g/amp-hr  
7

Electron Work Function
4.90 eV  
12
4.26 eV  
27

Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity  
Chemical Stability, Ionization, Solubility  

Atomic

Atomic Number
99  
19
47  
99+

Electron Configuration
[Rn] 5f11 7s2  
[Kr] 4d10 5s1  

Crystal Structure
Face Centered Cubic (FCC)  
Face Centered Cubic (FCC)  

Crystal Lattice
FCC-Crystal-Structure-of-Einsteinium.jpg#100  
FCC-Crystal-Structure-of-Silver.jpg#100  

Atom
  
  

Number of Protons
99  
19
47  
99+

Number of Neutrons
153  
10
61  
99+

Number of Electrons
99  
19
47  
99+

Radius of an Atom
  
  

Atomic Radius
186.00 pm  
11
144.00 pm  
38

Covalent Radius
186.00 pm  
21
145.00 pm  
99+

Van der Waals Radius
0.00 pm  
99+
172.00 pm  
99+

Atomic Weight
252.00 amu  
16
107.87 amu  
99+

Atomic Volume
17.04 cm3/mol  
99+
10.30 cm3/mol  
99+

Adjacent Atomic Numbers
  
  

Previous Element
Palladium
  

Next Element
Fermium
  
Cadmium
  

Valence Electron Potential
0.00 (-eV)  
99+
11.40 (-eV)  
99+

Lattice Constant
582.00 pm  
8
408.53 pm  
23

Lattice Angles
-  
π/2, π/2, π/2  

Lattice C/A Ratio
1.29  
99+
1.59  
26

Mechanical

Density
  
  

Density At Room Temperature
8.84 g/cm3  
99+
10.49 g/cm3  
37

Density When Liquid (at m.p.)
8.84 g/cm3  
99+
9.32 g/cm3  
99+

Tensile Strength
0.10 MPa  
99+
170.00 MPa  
21

Viscosity
0.00  
25
0.00  
23

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)  
22
0.00 (Pa)  
14

Vapor Pressure at 2000 K
0.00 (Pa)  
24
0.00 (Pa)  
38

Elasticity properties
  
  

Shear Modulus
30.00 GPa  
27
30.00 GPa  
27

Bulk Modulus
40.00 GPa  
38
100.00 GPa  
16

Young's Modulus
0.00 GPa  
99+
83.00 GPa  
25

Poisson Ratio
0.33  
11
0.37  
7

Other Mechanical Properties
-  
Ductile, Malleable  

Magnetic

Magnetic Characteristics
  
  

Specific Gravity
8.84  
99+
10.50  
39

Magnetic Ordering
Paramagnetic  
Diamagnetic  

Permeability
0.00 H/m  
17
0.00 H/m  
17

Susceptibility
0.00  
24
0.00  
32

Electrical Properties
  
  

Electrical Property
-  
Conductor  

Resistivity
6.30 nΩ·m  
99+
15.87 nΩ·m  
99+

Electrical Conductivity
0.14 106/cm Ω  
15
0.63 106/cm Ω  
1

Electron Affinity
0.00 kJ/mol  
99+
125.60 kJ/mol  
5

Thermal

Specific Heat
0.10 J/(kg K)  
99+
0.24 J/(kg K)  
25

Molar Heat Capacity
27.20 J/mol·K  
24
25.35 J/mol·K  
99+

Thermal Conductivity
0.00 W/m·K  
99+
429.00 W/m·K  
1

Critical Temperature
1,133.00 K  
99+
1,235.00 K  
99+

Thermal Expansion
13.50 µm/(m·K)  
33
18.90 µm/(m·K)  
25

Enthalpy
  
  

Enthalpy of Vaporization
323.80 kJ/mol  
99+
255.10 kJ/mol  
99+

Enthalpy of Fusion
14.80 kJ/mol  
24
11.30 kJ/mol  
37

Enthalpy of Atomization
-  
284.50 kJ/mol  
99+

Standard Molar Entropy
63.00 J/mol.K  
24
42.60 J/mol.K  
99+

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