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Nihonium vs Thallium

Nihonium
Thallium
Thallium vs Nihonium


Periodic Table
Symbol
Nh  
Tl  
Group Number
13  
5
13  
5
Period Number
7  
6  
Block
p block  
p block  
Element Family
Probably Post-​Transition  
Post-​Transition  
CAS Number
54084707  
6
7440280  
99+
Space Group Name
-  
P63/mmc  
Space Group Number
194.00  
7
194.00  
7
Facts
Interesting Facts
Nihonium is a synthetic chemical element and is highly radioactive.  
  • 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
Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory  
William Crookes  
Discovery
In 2003  
In 1861  
Abundance
  
  
Abundance In Universe
0.00 %  
40
0.00 %  
33
Abundance In Sun
-  
0.00 %  
26
Abundance In Meteorites
-  
0.00 %  
99+
Abundance In Earth's Crust
-  
0.00 %  
99+
Abundance In Oceans
-  
0.00 %  
34
Abundance In Humans
-  
0.00 %  
24
Uses
Uses & Benefits
  • Currently known uses of Ununtrium 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  
29
0.00 Blood/mg dm-3  
37
In Bone
0.20 p.p.m.  
27
0.00 p.p.m.  
38
Physical
Melting Point
430.00 °C  
99+
303.50 °C  
99+
Boiling Point
1,130.00 °C  
99+
1,457.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
-  
Silvery White  
Luster
Unknown Luster  
-  
Hardness
  
  
Mohs Hardness
-  
1.20  
21
Brinell Hardness
600.00 MPa  
24
26.50 MPa  
99+
Vickers Hardness
350.00 MPa  
99+
120.00 MPa  
99+
Speed of Sound
3,600.00 m/s  
29
818.00 m/s  
99+
Optical Properties
  
  
Refractive Index
1.30  
99+
1.90  
18
Reflectivity
60.00 %  
23
8.00 %  
37
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Nh  
Tl  
Isotopes
  
  
Known Isotopes
7  
31
32  
7
Electronegativity
  
  
Pauling Electronegativity
1.30  
33
1.62  
22
Sanderson Electronegativity
1.90  
13
2.25  
6
Allred Rochow Electronegativity
1.30  
25
1.44  
18
Mulliken-Jaffe Electronegativity
1.00  
99+
1.96  
11
Allen Electronegativity
0.70  
99+
1.79  
16
Electropositivity
  
  
Pauling Electropositivity
2.20  
39
2.38  
33
Ionization Energies
  
  
1st Energy Level
704.90 kJ/mol  
34
589.40 kJ/mol  
99+
2nd Energy Level
2,238.50 kJ/mol  
7
1,971.00 kJ/mol  
14
3rd Energy Level
3,023.30 kJ/mol  
26
2,878.00 kJ/mol  
32
4th Energy Level
4,351.50 kJ/mol  
39
5,890.00 kJ/mol  
17
5th Energy Level
5,692.60 kJ/mol  
99+
5,890.00 kJ/mol  
99+
6th Energy Level
7,000.00 kJ/mol  
99+
5,890.00 kJ/mol  
99+
7th Energy level
7,040.00 kJ/mol  
40
5,890.00 kJ/mol  
99+
8th Energy Level
7,040.00 kJ/mol  
36
5,890.00 kJ/mol  
99+
9th Energy Level
7,040.00 kJ/mol  
33
5,890.00 kJ/mol  
99+
10th Energy Level
7,040.00 kJ/mol  
37
5,890.00 kJ/mol  
99+
11th Energy Level
7,040.00 kJ/mol  
35
5,890.00 kJ/mol  
99+
12th Energy Level
70,000.00 kJ/mol  
5
5,890.00 kJ/mol  
99+
13th Energy Level
7,000.00 kJ/mol  
34
5,890.00 kJ/mol  
99+
14th Energy Level
7,000.00 kJ/mol  
24
5,890.00 kJ/mol  
37
15th Energy Level
70,000.00 kJ/mol  
30
58,900.00 kJ/mol  
99+
16th Energy Level
70,000.00 kJ/mol  
25
58,900.00 kJ/mol  
38
17th Energy Level
540.00 kJ/mol  
99+
589.40 kJ/mol  
99+
18th Energy Level
3,200.00 kJ/mol  
99+
5,890.00 kJ/mol  
99+
19th Energy Level
540.20 kJ/mol  
99+
589.40 kJ/mol  
99+
20th Energy Level
700.00 kJ/mol  
36
589.00 kJ/mol  
99+
21st Energy Level
1,130.00 kJ/mol  
29
589.40 kJ/mol  
99+
22nd Energy Level
558.00 kJ/mol  
99+
589.00 kJ/mol  
99+
23rd Energy Level
7,000.00 kJ/mol  
11
589.40 kJ/mol  
99+
24th Energy Level
700.00 kJ/mol  
29
589.40 kJ/mol  
99+
25th Energy Level
0.00 kJ/mol  
99+
589.40 kJ/mol  
99+
26th Energy Level
586.20 kJ/mol  
99+
589.40 kJ/mol  
99+
27th Energy Level
704.90 kJ/mol  
28
589.40 kJ/mol  
99+
28th Energy Level
704.90 kJ/mol  
33
589.40 kJ/mol  
99+
29th Energy Level
704.90 kJ/mol  
34
589.40 kJ/mol  
99+
30th Energy Level
704.00 kJ/mol  
28
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
Chemical Stability, Ionization  
Corrosion, Ionization, Radioactive Isotopes, Solubility  
Atomic
Atomic Number
113  
5
81  
35
Electron Configuration
[Rn] 5f14 6d10 7s2 7p1  
[Xe] 4f14 5d10 6s2 6p1  
Crystal Structure
Not Known  
Hexagonal Close Packed (HCP)  
Crystal Lattice
Unknown-Crystal-Structure-of-Ununtrium.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
113  
5
81  
35
Number of Neutrons
150  
12
123  
21
Number of Electrons
113  
5
81  
35
Radius of an Atom
  
  
Atomic Radius
170.00 pm  
24
170.00 pm  
24
Covalent Radius
170.00 pm  
27
145.00 pm  
99+
Van der Waals Radius
320.00 pm  
3
196.00 pm  
37
Atomic Weight
286.00 amu  
4
204.38 amu  
31
Atomic Volume
21.10 cm3/mol  
24
17.20 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Copernicium
  
Mercury
  
Next Element
Flerovium
  
Lead
  
Valence Electron Potential
6.20 (-eV)  
99+
9.60 (-eV)  
99+
Lattice Constant
0.00 pm  
99+
345.66 pm  
99+
Lattice Angles
-  
π/2, π/2, 2 π/3  
Lattice C/A Ratio
1.58  
35
1.60  
23
Mechanical
Density
  
  
Density At Room Temperature
16.00 g/cm3  
19
11.85 g/cm3  
33
Density When Liquid (at m.p.)
16.00 g/cm3  
19
11.22 g/cm3  
33
Tensile Strength
80.00 MPa  
29
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
40.00 GPa  
19
2.80 GPa  
99+
Bulk Modulus
0.00 GPa  
99+
43.00 GPa  
33
Young's Modulus
12.20 GPa  
99+
8.00 GPa  
99+
Poisson Ratio
0.30  
14
0.45  
2
Other Mechanical Properties
-  
Ductile, Sectile  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
16.00  
21
11.85  
35
Magnetic Ordering
-  
Diamagnetic  
Permeability
0.00 H/m  
5
0.00 H/m  
17
Susceptibility
0.00  
24
0.00  
28
Electrical Properties
  
  
Electrical Property
-  
Conductor  
Resistivity
0.32 nΩ·m  
99+
0.18 nΩ·m  
99+
Electrical Conductivity
0.00 106/cm Ω  
99+
0.06 106/cm Ω  
37
Electron Affinity
0.00 kJ/mol  
99+
19.20 kJ/mol  
38
Thermal
Specific Heat
0.12 J/(kg K)  
99+
0.13 J/(kg K)  
40
Molar Heat Capacity
27.00 J/mol·K  
29
26.32 J/mol·K  
37
Thermal Conductivity
1.70 W/m·K  
99+
46.10 W/m·K  
33
Critical Temperature
700.00 K  
99+
577.00 K  
99+
Thermal Expansion
6.20 µm/(m·K)  
99+
29.90 µm/(m·K)  
12
Enthalpy
  
  
Enthalpy of Vaporization
410.80 kJ/mol  
23
162.10 kJ/mol  
99+
Enthalpy of Fusion
-  
4.27 kJ/mol  
99+
Enthalpy of Atomization
320.70 kJ/mol  
99+
179.90 kJ/mol  
99+
Standard Molar Entropy
65.00 J/mol.K  
17
64.20 J/mol.K  
20
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