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Thorium Mercury Comparison

Thorium
Mercury
Mercury Thorium comparison


Periodic Table
Symbol
Th  
Hg  
Group Number
0  
18
12  
6
Period Number
7  
6  
Block
f block  
d block  
Element Family
Actinide  
Transition Metal  
CAS Number
7440326  
99+
7439976  
99+
Space Group Name
P63/mmc  
R_ 3m  
Space Group Number
194.00  
7
166.00  
9
Facts
Interesting Facts
  • Thorium metal is used as an alternate option over Uranium for nuclear fuel.
  • Thorium metals appearance (silvery white, soft) is somewhat similar to Lead metal.
  
  • At room temperature mercury is found in a liquid state.
  • A coin of pound or rupees floats in mercury.
  • Because of its low melting point and boiling point it is used in thermometers.
  
Sources
Found in Minerals, Mining  
Mining, Ores of Minerals  
History
  
  
Who Discovered
Jöns Jakob Berzelius  
Ancient Chinese and Indians  
Discovery
In 1829  
Before 2000 BCE  
Abundance
  
  
Abundance In Universe
0.00 %  
10
0.09 %  
2
Abundance In Sun
0.00 %  
9
0.00 %  
30
Abundance In Meteorites
0.05 %  
11
0.00 %  
99+
Abundance In Earth's Crust
0.66 %  
7
0.05 %  
9
Abundance In Oceans
0.00 %  
15
-  
Abundance In Humans
0.00 %  
24
0.00 %  
24
Uses
Uses & Benefits
  • Thorium metal is used as an allying agent for Magnesium, It imparts greater strength and resistance to temperature.
  • compound of this metal Thorium oxide is used as an industrial catalyst.
  
  • It is a liquid metal at room temperature, but it is a toxic heavy metal and hence many uses of mercury are under review or phased out.
  • It is manly used as a catalysts in chemical industry.
  
Industrial Uses
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry  
Electrical Industry, Electronic Industry  
Medical Uses
Dentistry, Surgical Instruments Manufacturing  
Dentistry  
Other Uses
Alloys, Jewellery, Sculptures, Statues  
Alloys, Mirror Manufacturing, Pharmaceutical Industry  
Biological Properties
  
  
Toxicity
Non Toxic  
Highly Toxic  
Present in Human Body
Yes  
Yes  
In Blood
0.00 Blood/mg dm-3  
36
0.01 Blood/mg dm-3  
23
In Bone
0.02 p.p.m.  
34
0.45 p.p.m.  
23
Physical
Melting Point
1,750.00 °C  
17
-38.83 °C  
99+
Boiling Point
4,790.00 °C  
8
356.58 °C  
99+
Appearance
  
  
Physical State
Solid  
Liquid  
Color
Silver  
Silver  
Luster
-  
-  
Hardness
  
  
Mohs Hardness
3.00  
13
1.50  
19
Brinell Hardness
390.00 MPa  
35
5.00 MPa  
99+
Vickers Hardness
295.00 MPa  
99+
0.00 MPa  
99+
Speed of Sound
2,490.00 m/s  
99+
1,451.40 m/s  
99+
Optical Properties
  
  
Refractive Index
1.60  
33
1.00  
99+
Reflectivity
15.00 %  
36
73.00 %  
10
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Th  
Hg  
Isotopes
  
  
Known Isotopes
28  
11
34  
5
Electronegativity
  
  
Pauling Electronegativity
1.30  
33
2.00  
8
Sanderson Electronegativity
1.30  
25
2.20  
8
Allred Rochow Electronegativity
1.11  
30
1.44  
18
Mulliken-Jaffe Electronegativity
1.30  
33
1.81  
17
Allen Electronegativity
1.30  
40
1.44  
34
Electropositivity
  
  
Pauling Electropositivity
2.70  
22
2.00  
99+
Ionization Energies
  
  
1st Energy Level
587.00 kJ/mol  
99+
1,007.10 kJ/mol  
4
2nd Energy Level
1,110.00 kJ/mol  
99+
1,810.00 kJ/mol  
21
3rd Energy Level
1,978.00 kJ/mol  
99+
3,300.00 kJ/mol  
20
4th Energy Level
2,780.00 kJ/mol  
99+
1,007.10 kJ/mol  
99+
5th Energy Level
5,870.00 kJ/mol  
99+
1,007.00 kJ/mol  
99+
6th Energy Level
5,870.00 kJ/mol  
99+
1,007.00 kJ/mol  
99+
7th Energy level
5,870.00 kJ/mol  
99+
1,007.00 kJ/mol  
99+
8th Energy Level
5,870.00 kJ/mol  
99+
1,007.00 kJ/mol  
99+
9th Energy Level
5,870.00 kJ/mol  
99+
1,007.00 kJ/mol  
99+
10th Energy Level
5,870.00 kJ/mol  
99+
1,007.00 kJ/mol  
99+
11th Energy Level
5,870.00 kJ/mol  
99+
1,007.00 kJ/mol  
99+
12th Energy Level
5,870.00 kJ/mol  
99+
1,007.00 kJ/mol  
99+
13th Energy Level
5,870.00 kJ/mol  
99+
1,007.00 kJ/mol  
99+
14th Energy Level
5,870.00 kJ/mol  
38
1,007.00 kJ/mol  
99+
15th Energy Level
58,700.00 kJ/mol  
99+
100,700.00 kJ/mol  
1
16th Energy Level
58,700.00 kJ/mol  
39
1,007.00 kJ/mol  
99+
17th Energy Level
587.40 kJ/mol  
99+
1,007.00 kJ/mol  
24
18th Energy Level
5,870.00 kJ/mol  
99+
1,007.00 kJ/mol  
99+
19th Energy Level
587.00 kJ/mol  
99+
1,007.10 kJ/mol  
20
20th Energy Level
587.00 kJ/mol  
99+
1,007.00 kJ/mol  
11
21st Energy Level
587.00 kJ/mol  
99+
1,007.00 kJ/mol  
33
22nd Energy Level
587.00 kJ/mol  
99+
1,007.00 kJ/mol  
8
23rd Energy Level
587.00 kJ/mol  
99+
1,007.00 kJ/mol  
36
24th Energy Level
587.00 kJ/mol  
99+
1,007.10 kJ/mol  
3
25th Energy Level
587.00 kJ/mol  
99+
1,007.10 kJ/mol  
3
26th Energy Level
587.40 kJ/mol  
99+
1,007.10 kJ/mol  
3
27th Energy Level
587.40 kJ/mol  
99+
1,007.10 kJ/mol  
2
28th Energy Level
587.40 kJ/mol  
99+
1,007.10 kJ/mol  
5
29th Energy Level
587.00 kJ/mol  
99+
1,007.10 kJ/mol  
6
30th Energy Level
587.40 kJ/mol  
99+
1,007.10 kJ/mol  
3
Electrochemical Equivalent
2.16 g/amp-hr  
28
3.74 g/amp-hr  
10
Electron Work Function
3.41 eV  
99+
4.49 eV  
20
Other Chemical Properties
Corrosion, Ionization, Radioactive Isotopes, Radioactivity  
Flammability, Ionization, Solubility  
Atomic
Atomic Number
90  
28
80  
36
Electron Configuration
[Rn] 6d2 7s2  
[Xe] 4f14 5d10 6s2  
Crystal Structure
Face Centered Cubic (FCC)  
Rhombohedral (RHO)  
Crystal Lattice
FCC-Crystal-Structure-of-Thorium.jpg#100  
RHO-Crystal-Structure-of-Mercury.jpg#100  
Atom
  
  
Number of Protons
90  
28
80  
36
Number of Neutrons
142  
16
121  
23
Number of Electrons
90  
28
80  
36
Radius of an Atom
  
  
Atomic Radius
179.80 pm  
17
151.00 pm  
34
Covalent Radius
206.00 pm  
7
132.00 pm  
99+
Van der Waals Radius
237.00 pm  
19
155.00 pm  
99+
Atomic Weight
232.04 amu  
23
200.59 amu  
32
Atomic Volume
19.90 cm3/mol  
32
14.82 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Actinium
  
Gold
  
Next Element
Protactinium
  
Thallium
  
Valence Electron Potential
59.30 (-eV)  
24
28.20 (-eV)  
99+
Lattice Constant
508.42 pm  
16
300.50 pm  
99+
Lattice Angles
π/2, π/2, π/2  
-  
Lattice C/A Ratio
1.10  
99+
0.42  
99+
Mechanical
Density
  
  
Density At Room Temperature
11.72 g/cm3  
34
13.53 g/cm3  
25
Density When Liquid (at m.p.)
11.72 g/cm3  
32
13.55 g/cm3  
27
Tensile Strength
75.00 MPa  
30
15.00 MPa  
99+
Viscosity
0.00  
23
0.00  
4
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
37
0.00 (Pa)  
22
Vapor Pressure at 2000 K
0.00 (Pa)  
22
0.00 (Pa)  
99+
Elasticity properties
  
  
Shear Modulus
31.00 GPa  
25
30.00 GPa  
27
Bulk Modulus
54.00 GPa  
23
25.00 GPa  
99+
Young's Modulus
79.00 GPa  
26
45.00 GPa  
99+
Poisson Ratio
0.27  
20
0.44  
3
Other Mechanical Properties
Ductile  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
11.70  
36
13.53  
27
Magnetic Ordering
Paramagnetic  
Diamagnetic  
Permeability
0.00 H/m  
17
0.00 H/m  
10
Susceptibility
0.00  
24
0.00  
20
Electrical Properties
  
  
Electrical Property
Superconductor  
Conductor  
Resistivity
157.00 nΩ·m  
22
961.00 nΩ·m  
1
Electrical Conductivity
0.07 106/cm Ω  
36
0.01 106/cm Ω  
99+
Electron Affinity
0.00 kJ/mol  
99+
0.00 kJ/mol  
99+
Thermal
Specific Heat
0.12 J/(kg K)  
99+
0.14 J/(kg K)  
39
Molar Heat Capacity
26.23 J/mol·K  
38
27.98 J/mol·K  
16
Thermal Conductivity
54.00 W/m·K  
28
8.30 W/m·K  
99+
Critical Temperature
2,023.00 K  
20
1,750.00 K  
33
Thermal Expansion
11.00 µm/(m·K)  
99+
60.40 µm/(m·K)  
5
Enthalpy
  
  
Enthalpy of Vaporization
429.00 kJ/mol  
20
56.90 kJ/mol  
99+
Enthalpy of Fusion
15.48 kJ/mol  
19
2.29 kJ/mol  
99+
Enthalpy of Atomization
468.60 kJ/mol  
20
61.50 kJ/mol  
99+
Standard Molar Entropy
27.30 J/mol.K  
99+
75.80 J/mol.K  
6
Summary >>
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