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Mercury vs Uranium

Mercury
Uranium
Uranium vs Mercury


Periodic Table
Symbol
Hg  
U  
Group Number
12  
6
0  
18
Period Number
6  
7  
Block
d block  
f block  
Element Family
Transition Metal  
Actinide  
CAS Number
7439976  
99+
7440611  
28
Space Group Name
R_ 3m  
Cmcm  
Space Group Number
166.00  
6
63.00  
10
Facts
Interesting Facts
  • 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.
  
  • Major mining countries of Uranium include Russia, Australia, Namibia, Canada and Niger and total 33% Uranium are mine in Kazakhstan.
  
Sources
Mining, Ores of Minerals  
Earth's crust, Mining, Ores of Minerals  
History
  
  
Who Discovered
Ancient Chinese and Indians  
Not Available  
Discovery
Before 2000 BCE  
In 1789  
Abundance
  
  
Abundance In Universe
Not Available  
2 * 10-8 %  
29
Abundance In Sun
~-9999 %  
~0.0000001 %  
26
Abundance In Meteorites
Not Available  
0.00 %  
99+
Abundance In Earth's Crust
0.05 %  
9
0.00 %  
36
Abundance In Oceans
Not Available  
0.00 %  
11
Uses
Uses & Benefits
  • 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.
  
  • The main use of this metal include nuclear fuel which is used to generate electricity yin nuclear power stations.
  • Synthetic elements like transuranium are made from Uranium metal.
  
Industrial Uses
Electrical Industry, Electronic Industry  
Ammunition Industry, Chemical Industry  
Medical Uses
Dentistry  
NA  
Other Uses
Alloys, Mirror Manufacturing, Pharmaceutical Industry  
Alloys, Jewellery, Nuclear Reactor's Fuel, Sculptures, Statues  
Biological Properties
  
  
Toxicity
Highly Toxic  
Toxic  
Present in Human Body
Yes  
No  
In Blood
0.01 Blood/mg dm-3  
23
Not Available  
In Bone
0.45 p.p.m.  
19
Not Available  
Physical Properties
Melting Point
Not Available  
1,132.00 °C  
39
Boiling Point
356.58 °C  
99+
3,818.00 °C  
16
Appearance
  
  
Physical State
Liquid  
Solid  
Color
Silver  
Silvery Gray  
Luster
NA  
Metallic  
Hardness
  
  
Mohs Hardness
Not Available  
6.00  
6
Brinell Hardness
Not Available  
2,350.00 MPa  
2
Vickers Hardness
Not Available  
1,960.00 MPa  
2
Speed of Sound
1,451.40 m/s  
99+
3,155.00 m/s  
25
Optical Properties
  
  
Refractive Index
1.00  
3
Not Available  
Reflectivity
73.00 %  
8
Not Available  
Allotropes
No  
No  
α Allotropes
Not Available  
Not Available  
β Allotropes
Not Available  
Not Available  
γ Allotropes
Not Available  
Not Available  
Chemical Properties
Chemical Formula
Hg  
U  
Isotopes
  
  
Known Isotopes
34  
5
25  
14
Electronegativity
  
  
Pauling Electronegativity
2.00  
7
1.38  
28
Sanderson Electronegativity
2.20  
7
Not Available  
Allred Rochow Electronegativity
1.44  
17
1.22  
26
Mulliken-Jaffe Electronegativity
1.81  
9
Not Available  
Allen Electronegativity
1.44  
30
Not Available  
Electropositivity
  
  
Pauling Electropositivity
2.00  
99+
2.62  
26
Ionization Energies
  
  
1st Energy Level
1,007.10 kJ/mol  
4
597.60 kJ/mol  
99+
2nd Energy Level
1,810.00 kJ/mol  
20
1,420.00 kJ/mol  
99+
3rd Energy Level
3,300.00 kJ/mol  
20
1,900.00 kJ/mol  
99+
4th Energy Level
Not Available  
3,145.00 kJ/mol  
99+
Electrochemical Equivalent
3.74 g/amp-hr  
10
1.48 g/amp-hr  
99+
Electron Work Function
4.49 eV  
15
3.63 eV  
30
Other Chemical Properties
Flammability, Ionization, Solubility  
Ionization, Radioactive Isotopes, Radioactivity  
Atomic Properties
Atomic Number
80  
36
92  
26
Electron Configuration
[Xe] 4f14 5d10 6s2  
[Rn] 5f3 6d1 7s2  
Crystal Structure
Rhombohedral (RHO)  
Orthorhombic (ORTH)  
Crystal Lattice
RHO-Crystal-Structure-of-Mercury.jpg#100  
ORTH-Crystal-Structure-of-Uranium.jpg#100  
Atom
  
  
Number of Protons
80  
36
92  
26
Number of Neutrons
121  
22
146  
13
Number of Electrons
80  
36
92  
26
Radius of an Atom
  
  
Atomic Radius
151.00 pm  
32
156.00 pm  
29
Covalent Radius
132.00 pm  
99+
196.00 pm  
14
Van der Waals Radius
155.00 pm  
99+
186.00 pm  
33
Atomic Weight
200.59 amu  
32
238.03 amu  
21
Atomic Volume
14.82 cm3/mol  
35
12.59 cm3/mol  
40
Adjacent Atomic Numbers
  
  
Previous Element
Gold
  
Protactinium
  
Next Element
Thallium
  
Neptunium
  
Valence Electron Potential
28.20 (-eV)  
99+
170.00 (-eV)  
4
Lattice Constant
300.50 pm  
99+
295.08 pm  
99+
Lattice Angles
NA  
π/2, π/2, π/2  
Lattice C/A Ratio
Not Available  
Not Available  
Mechanical Properties
Density
  
  
Density At Room Temperature
13.53 g/cm3  
24
19.10 g/cm3  
17
Density When Liquid (at m.p.)
Not Available  
17.30 g/cm3  
7
Tensile Strength
Not Available  
Not Available  
Viscosity
0.00  
1
Not Available  
Vapor Pressure
  
  
Vapor Pressure at 2000 K
Not Available  
0.01 (Pa)  
20
Elasticity properties
  
  
Shear Modulus
Not Available  
111.00 GPa  
10
Bulk Modulus
Not Available  
100.00 GPa  
16
Young's Modulus
Not Available  
208.00 GPa  
10
Poisson Ratio
Not Available  
0.23  
30
Other Mechanical Properties
NA  
Ductile, Malleable  
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
13.53  
16
18.80  
10
Magnetic Ordering
Diamagnetic  
Paramagnetic  
Electrical Properties
  
  
Electrical Property
Conductor  
Poor Conductor  
Resistivity
961.00 nΩ·m  
1
0.28 nΩ·m  
99+
Electrical Conductivity
0.01 106/cm Ω  
99+
0.04 106/cm Ω  
37
Electron Affinity
0.00 kJ/mol  
40
Not Available  
Thermal Properties
Specific Heat
0.14 J/(kg K)  
38
0.12 J/(kg K)  
40
Molar Heat Capacity
27.98 J/mol·K  
13
27.67 J/mol·K  
15
Thermal Conductivity
8.30 W/m·K  
99+
27.50 W/m·K  
40
Critical Temperature
1,750.00 K  
6
Not Available  
Thermal Expansion
60.40 µm/(m·K)  
5
13.90 µm/(m·K)  
27
Enthalpy
  
  
Enthalpy of Vaporization
56.90 kJ/mol  
99+
477.00 kJ/mol  
13
Enthalpy of Fusion
2.29 kJ/mol  
99+
15.48 kJ/mol  
19
Enthalpy of Atomization
61.50 kJ/mol  
99+
489.50 kJ/mol  
14
Standard Molar Entropy
75.80 J/mol.K  
6
50.20 J/mol.K  
31
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