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Copernicium Thallium Comparison


Thallium Copernicium comparison


Periodic Table

Symbol
Cn  
Tl  

Group Number
12  
6
13  
5

Period Number
7  
6  

Block
d block  
p block  

Element Family
Transition Metal  
Post-​Transition  

CAS Number
54084263  
7
7440280  
99+

Space Group Name
-  
P63/mmc  

Space Group Number
187.00  
8
194.00  
7

Facts

Interesting Facts
Copernicium was first synthesized in 1996 by a German research team.  
  • Compounds of Thallium metal are highly Toxic.
  • Thallium metal is being suspected as a human carcinogen.
  

Sources
Synthetically Produced  
Found As a By-product, Ores of metals, Ores of Minerals  

History
  
  

Who Discovered
Gesellschaft für Schwerionenforschung  
William Crookes  

Discovery
In 1996  
In 1861  

Abundance
  
  

Abundance In Universe
0.00 %  
39
0.00 %  
33

Abundance In Sun
-  
0.00 %  
26

Abundance In Meteorites
0.00 %  
99+
0.00 %  
99+

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

Abundance In Oceans
-  
0.00 %  
34

Abundance In Humans
-  
0.00 %  
24

Uses

Uses & Benefits
  • Currently known uses of Copernicium metal are limited to research purpose only.
  
  • Thallium is a toxic metal and hence it has limited uses. Thallium metal is mostly used for producing photoelectric cells.
  • In thermometer’s mercury alloy has 8% of thallium, as it has a melting point lower than 20°C.
  

Industrial Uses
-  
Chemical Industry  

Medical Uses
-  
Medical Research  

Other Uses
Research Purposes  
Alloys  

Biological Properties
  
  

Toxicity
-  
Highly Toxic  

Present in Human Body
No  
Yes  

In Blood
0.00 Blood/mg dm-3  
40
0.00 Blood/mg dm-3  
37

In Bone
0.00 p.p.m.  
99+
0.00 p.p.m.  
38

Physical

Melting Point
-  
303.50 °C  
99+

Boiling Point
0.00 °C  
99+
1,457.00 °C  
99+

Appearance
  
  

Physical State
Solid  
Solid  

Color
-  
Silvery White  

Luster
Unknown Luster  
-  

Hardness
  
  

Mohs Hardness
4.00  
11
1.20  
21

Brinell Hardness
240.00 MPa  
99+
26.50 MPa  
99+

Vickers Hardness
3,570.00 MPa  
2
120.00 MPa  
99+

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

Optical Properties
  
  

Refractive Index
1.90  
18
1.90  
18

Reflectivity
45.00 %  
32
8.00 %  
37

Allotropes
No  
No  

α Allotropes
-  
-  

β Allotropes
-  
-  

γ Allotropes
-  
-  

Chemical

Chemical Formula
Cn  
Tl  

Isotopes
  
  

Known Isotopes
1  
34
32  
7

Electronegativity
  
  

Pauling Electronegativity
1.90  
12
1.62  
22

Sanderson Electronegativity
1.30  
25
2.25  
6

Allred Rochow Electronegativity
1.90  
1
1.44  
18

Mulliken-Jaffe Electronegativity
1.90  
13
1.96  
11

Allen Electronegativity
1.90  
8
1.79  
16

Electropositivity
  
  

Pauling Electropositivity
2.00  
99+
2.38  
33

Ionization Energies
  
  

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

2nd Energy Level
2,170.00 kJ/mol  
9
1,971.00 kJ/mol  
14

3rd Energy Level
4,245.40 kJ/mol  
9
2,878.00 kJ/mol  
32

4th Energy Level
5,499.70 kJ/mol  
23
5,890.00 kJ/mol  
17

5th Energy Level
3,570.00 kJ/mol  
99+
5,890.00 kJ/mol  
99+

6th Energy Level
7,030.00 kJ/mol  
99+
5,890.00 kJ/mol  
99+

7th Energy level
3,570.00 kJ/mol  
99+
5,890.00 kJ/mol  
99+

8th Energy Level
4,480.00 kJ/mol  
99+
5,890.00 kJ/mol  
99+

9th Energy Level
5,850.00 kJ/mol  
99+
5,890.00 kJ/mol  
99+

10th Energy Level
4,480.00 kJ/mol  
99+
5,890.00 kJ/mol  
99+

11th Energy Level
3,570.00 kJ/mol  
99+
5,890.00 kJ/mol  
99+

12th Energy Level
35,700.00 kJ/mol  
26
5,890.00 kJ/mol  
99+

13th Energy Level
4,480.00 kJ/mol  
99+
5,890.00 kJ/mol  
99+

14th Energy Level
1,157.00 kJ/mol  
99+
5,890.00 kJ/mol  
37

15th Energy Level
35,700.00 kJ/mol  
99+
58,900.00 kJ/mol  
99+

16th Energy Level
35,700.00 kJ/mol  
99+
58,900.00 kJ/mol  
38

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

18th Energy Level
3,570.00 kJ/mol  
99+
5,890.00 kJ/mol  
99+

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

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

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

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

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

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

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

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

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

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

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

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

Electrochemical Equivalent
3.00 g/amp-hr  
21
7.63 g/amp-hr  
2

Electron Work Function
4.90 eV  
12
3.84 eV  
39

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

Atomic

Atomic Number
112  
6
81  
35

Electron Configuration
[Rn] 5f14 6d10 7s2  
[Xe] 4f14 5d10 6s2 6p1  

Crystal Structure
Hexagonal Close Packed (HCP)  
Hexagonal Close Packed (HCP)  

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

Atom
  
  

Number of Protons
112  
6
81  
35

Number of Neutrons
285  
1
123  
21

Number of Electrons
112  
6
81  
35

Radius of an Atom
  
  

Atomic Radius
147.00 pm  
36
170.00 pm  
24

Covalent Radius
122.00 pm  
99+
145.00 pm  
99+

Van der Waals Radius
0.00 pm  
99+
196.00 pm  
37

Atomic Weight
285.00 amu  
5
204.38 amu  
31

Atomic Volume
17.80 cm3/mol  
99+
17.20 cm3/mol  
99+

Adjacent Atomic Numbers
  
  

Previous Element
Mercury
  

Next Element
Nihonium
  
Lead
  

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

Lattice Constant
-  
345.66 pm  
99+

Lattice Angles
-  
π/2, π/2, 2 π/3  

Lattice C/A Ratio
1.58  
36
1.60  
23

Mechanical

Density
  
  

Density At Room Temperature
23.70 g/cm3  
7
11.85 g/cm3  
33

Density When Liquid (at m.p.)
23.70 g/cm3  
8
11.22 g/cm3  
33

Tensile Strength
0.10 MPa  
99+
47.00 MPa  
39

Viscosity
0.00  
25
0.00  
22

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)  
37
16.90 (Pa)  
5

Vapor Pressure at 2000 K
0.00 (Pa)  
37
0.00 (Pa)  
38

Elasticity properties
  
  

Shear Modulus
31.00 GPa  
25
2.80 GPa  
99+

Bulk Modulus
35.00 GPa  
99+
43.00 GPa  
33

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

Poisson Ratio
0.35  
9
0.45  
2

Other Mechanical Properties
-  
Ductile, Sectile  

Magnetic

Magnetic Characteristics
  
  

Specific Gravity
23.70  
9
11.85  
35

Magnetic Ordering
-  
Diamagnetic  

Permeability
0.00 H/m  
17
0.00 H/m  
17

Susceptibility
0.00  
24
0.00  
28

Electrical Properties
  
  

Electrical Property
-  
Conductor  

Resistivity
4.90 nΩ·m  
99+
0.18 nΩ·m  
99+

Electrical Conductivity
0.00 106/cm Ω  
99+
0.06 106/cm Ω  
37

Electron Affinity
-  
19.20 kJ/mol  
38

Thermal

Specific Heat
0.10 J/(kg K)  
99+
0.13 J/(kg K)  
40

Molar Heat Capacity
13.10 J/mol·K  
99+
26.32 J/mol·K  
37

Thermal Conductivity
13.00 W/m·K  
99+
46.10 W/m·K  
33

Critical Temperature
1,323.00 K  
99+
577.00 K  
99+

Thermal Expansion
13.80 µm/(m·K)  
31
29.90 µm/(m·K)  
12

Enthalpy
  
  

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

Enthalpy of Fusion
-  
4.27 kJ/mol  
99+

Enthalpy of Atomization
-  
179.90 kJ/mol  
99+

Standard Molar Entropy
55.00 J/mol.K  
34
64.20 J/mol.K  
20

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