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Cesium Copernicium Comparison


Copernicium Cesium comparison


Periodic Table

Symbol
Cs  
Cn  

Group Number
1  
17
12  
6

Period Number
6  
7  

Block
s block  
d block  

Element Family
Alkali  
Transition Metal  

CAS Number
7440462  
40
54084263  
7

Space Group Name
Im_ 3m  
-  

Space Group Number
229.00  
2
187.00  
8

Facts

Interesting Facts
Cesium is the most alkaline metal and is used in atomic clocks.  
Copernicium was first synthesized in 1996 by a German research team.  

Sources
Earth's crust, Found in Minerals, Mining, Ores of Minerals  
Synthetically Produced  

History
  
  

Who Discovered
Robert Bunsen and Gustav Kirchhoff  
Gesellschaft für Schwerionenforschung  

Discovery
In 1860  
In 1996  

Abundance
  
  

Abundance In Universe
0.00 %  
25
0.00 %  
39

Abundance In Sun
0.00 %  
20
-  

Abundance In Meteorites
0.00 %  
38
0.00 %  
99+

Abundance In Earth's Crust
0.00 %  
35
0.00 %  
99+

Abundance In Oceans
0.00 %  
17
-  

Abundance In Humans
0.00 %  
20
-  

Uses

Uses & Benefits
  • The most common use of cesium metal is as a drilling fluid. It is also used in optical glass manufacturing.
  • In vacuum tubes and radiation monitor equipment this metal is used as a catalyst promoter.
  
  • Currently known uses of Copernicium metal are limited to research purpose only.
  

Industrial Uses
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry  
-  

Medical Uses
-  
-  

Other Uses
Alloys  
Research Purposes  

Biological Properties
  
  

Toxicity
Mildly Toxic  
-  

Present in Human Body
Yes  
No  

In Blood
0.00 Blood/mg dm-3  
28
0.00 Blood/mg dm-3  
40

In Bone
0.05 p.p.m.  
31
0.00 p.p.m.  
99+

Physical

Melting Point
28.50 °C  
99+
-  

Boiling Point
678.40 °C  
99+
0.00 °C  
99+

Appearance
  
  

Physical State
Solid  
Solid  

Color
Silvery Gold  
-  

Luster
-  
Unknown Luster  

Hardness
  
  

Mohs Hardness
0.20  
27
4.00  
11

Brinell Hardness
0.14 MPa  
99+
240.00 MPa  
99+

Vickers Hardness
0.14 MPa  
99+
3,570.00 MPa  
2

Speed of Sound
1,630.00 m/s  
99+
3,570.00 m/s  
30

Optical Properties
  
  

Refractive Index
1.93  
17
1.90  
18

Reflectivity
35.00 %  
34
45.00 %  
32

Allotropes
No  
No  

α Allotropes
-  
-  

β Allotropes
-  
-  

γ Allotropes
-  
-  

Chemical

Chemical Formula
Cs  
Cn  

Isotopes
  
  

Known Isotopes
36  
3
1  
34

Electronegativity
  
  

Pauling Electronegativity
0.79  
99+
1.90  
12

Sanderson Electronegativity
0.22  
99+
1.30  
25

Allred Rochow Electronegativity
0.86  
99+
1.90  
1

Mulliken-Jaffe Electronegativity
0.62  
99+
1.90  
13

Allen Electronegativity
0.66  
99+
1.90  
8

Electropositivity
  
  

Pauling Electropositivity
3.21  
2
2.00  
99+

Ionization Energies
  
  

1st Energy Level
375.70 kJ/mol  
99+
1,154.90 kJ/mol  
2

2nd Energy Level
2,234.30 kJ/mol  
8
2,170.00 kJ/mol  
9

3rd Energy Level
3,400.00 kJ/mol  
16
4,245.40 kJ/mol  
9

4th Energy Level
375.70 kJ/mol  
99+
5,499.70 kJ/mol  
23

5th Energy Level
3,750.00 kJ/mol  
99+
3,570.00 kJ/mol  
99+

6th Energy Level
3,750.00 kJ/mol  
99+
7,030.00 kJ/mol  
99+

7th Energy level
3,750.00 kJ/mol  
99+
3,570.00 kJ/mol  
99+

8th Energy Level
3,760.00 kJ/mol  
99+
4,480.00 kJ/mol  
99+

9th Energy Level
3,750.00 kJ/mol  
99+
5,850.00 kJ/mol  
99+

10th Energy Level
3,757.00 kJ/mol  
99+
4,480.00 kJ/mol  
99+

11th Energy Level
3,757.00 kJ/mol  
99+
3,570.00 kJ/mol  
99+

12th Energy Level
3,750.00 kJ/mol  
99+
35,700.00 kJ/mol  
26

13th Energy Level
3,750.00 kJ/mol  
99+
4,480.00 kJ/mol  
99+

14th Energy Level
3,750.00 kJ/mol  
99+
1,157.00 kJ/mol  
99+

15th Energy Level
37,500.00 kJ/mol  
99+
35,700.00 kJ/mol  
99+

16th Energy Level
375.70 kJ/mol  
99+
35,700.00 kJ/mol  
99+

17th Energy Level
375.70 kJ/mol  
99+
1,157.00 kJ/mol  
16

18th Energy Level
3,757.00 kJ/mol  
99+
3,570.00 kJ/mol  
99+

19th Energy Level
375.70 kJ/mol  
99+
1,157.60 kJ/mol  
14

20th Energy Level
375.00 kJ/mol  
99+
0.00 kJ/mol  
99+

21st Energy Level
375.70 kJ/mol  
99+
1,157.00 kJ/mol  
28

22nd Energy Level
375.00 kJ/mol  
99+
357.00 kJ/mol  
99+

23rd Energy Level
375.70 kJ/mol  
99+
357.60 kJ/mol  
99+

24th Energy Level
375.70 kJ/mol  
99+
357.60 kJ/mol  
99+

25th Energy Level
375.70 kJ/mol  
99+
0.00 kJ/mol  
99+

26th Energy Level
375.70 kJ/mol  
99+
357.60 kJ/mol  
99+

27th Energy Level
375.70 kJ/mol  
99+
0.00 kJ/mol  
99+

28th Energy Level
375.70 kJ/mol  
99+
1,157.00 kJ/mol  
2

29th Energy Level
375.70 kJ/mol  
99+
1,157.00 kJ/mol  
3

30th Energy Level
375.70 kJ/mol  
99+
357.60 kJ/mol  
99+

Electrochemical Equivalent
4.96 g/amp-hr  
3
3.00 g/amp-hr  
21

Electron Work Function
2.14 eV  
99+
4.90 eV  
12

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

Atomic

Atomic Number
55  
99+
112  
6

Electron Configuration
[Xe] 6s1  
[Rn] 5f14 6d10 7s2  

Crystal Structure
Body Centered Cubic (BCC)  
Hexagonal Close Packed (HCP)  

Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
BCC-Crystal-Structure-.jpg#100  

Atom
  
  

Number of Protons
55  
99+
112  
6

Number of Neutrons
78  
99+
285  
1

Number of Electrons
55  
99+
112  
6

Radius of an Atom
  
  

Atomic Radius
265.00 pm  
2
147.00 pm  
36

Covalent Radius
244.00 pm  
2
122.00 pm  
99+

Van der Waals Radius
343.00 pm  
2
0.00 pm  
99+

Atomic Weight
132.91 amu  
99+
285.00 amu  
5

Atomic Volume
71.07 cm3/mol  
1
17.80 cm3/mol  
99+

Adjacent Atomic Numbers
  
  

Previous Element
Tin
  

Next Element
Barium
  
Nihonium
  

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

Lattice Constant
614.10 pm  
5
-  

Lattice Angles
π/2, π/2, π/2  
-  

Lattice C/A Ratio
1.87  
3
1.58  
36

Mechanical

Density
  
  

Density At Room Temperature
1.93 g/cm3  
99+
23.70 g/cm3  
7

Density When Liquid (at m.p.)
1.84 g/cm3  
99+
23.70 g/cm3  
8

Tensile Strength
15.00 MPa  
99+
0.10 MPa  
99+

Viscosity
0.00  
25
0.00  
25

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)  
22
0.00 (Pa)  
37

Vapor Pressure at 2000 K
0.00 (Pa)  
30
0.00 (Pa)  
37

Elasticity properties
  
  

Shear Modulus
30.00 GPa  
27
31.00 GPa  
25

Bulk Modulus
1.60 GPa  
99+
35.00 GPa  
99+

Young's Modulus
1.70 GPa  
99+
0.00 GPa  
99+

Poisson Ratio
0.35  
9
0.35  
9

Other Mechanical Properties
Ductile  
-  

Magnetic

Magnetic Characteristics
  
  

Specific Gravity
1.87  
99+
23.70  
9

Magnetic Ordering
Paramagnetic  
-  

Permeability
0.00 H/m  
17
0.00 H/m  
17

Susceptibility
0.00  
24
0.00  
24

Electrical Properties
  
  

Electrical Property
Semiconductor  
-  

Resistivity
205.00 nΩ·m  
17
4.90 nΩ·m  
99+

Electrical Conductivity
0.05 106/cm Ω  
40
0.00 106/cm Ω  
99+

Electron Affinity
45.50 kJ/mol  
30
-  

Thermal

Specific Heat
0.24 J/(kg K)  
23
0.10 J/(kg K)  
99+

Molar Heat Capacity
32.21 J/mol·K  
6
13.10 J/mol·K  
99+

Thermal Conductivity
35.90 W/m·K  
37
13.00 W/m·K  
99+

Critical Temperature
1,938.00 K  
22
1,323.00 K  
99+

Thermal Expansion
97.00 µm/(m·K)  
1
13.80 µm/(m·K)  
31

Enthalpy
  
  

Enthalpy of Vaporization
65.90 kJ/mol  
99+
357.20 kJ/mol  
31

Enthalpy of Fusion
2.10 kJ/mol  
99+
-  

Enthalpy of Atomization
78.20 kJ/mol  
99+
-  

Standard Molar Entropy
85.20 J/mol.K  
3
55.00 J/mol.K  
34

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