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Uranium Mercury Comparison


Mercury Uranium comparison


Periodic Table

Symbol
U   
Hg   

Group Number
0   
18
12   
6

Period Number
7   
6   

Block
f block   
d block   

Element Family
Actinide   
Transition Metal   

CAS Number
7440611   
28
7439976   
99+

Space Group Name
Cmcm   
R_ 3m   

Space Group Number
63.00   
10
166.00   
6

Facts

Interesting Facts
  • Major mining countries of Uranium include Russia, Australia, Namibia, Canada and Niger and total 33% Uranium are mine in Kazakhstan.
  
  • 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
Earth's crust, Mining, Ores of Minerals   
Mining, Ores of Minerals   

History
  
  

Who Discovered
Not Available   
Ancient Chinese and Indians   

Discovery
In 1789   
Before 2000 BCE   

Abundance
  
  

Abundance In Universe
2 * 10-8 %   
29
Not Available   

Abundance In Sun
~0.0000001 %   
26
~-9999 %   

Abundance In Meteorites
0.00 %   
99+
Not Available   

Abundance In Earth's Crust
0.00 %   
36
0.05 %   
9

Abundance In Oceans
0.00 %   
11
Not Available   

Uses

Uses & Benefits
  • 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.
  
  • 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
Ammunition Industry, Chemical Industry   
Electrical Industry, Electronic Industry   

Medical Uses
NA   
Dentistry   

Other Uses
Alloys, Jewellery, Nuclear Reactor's Fuel, Sculptures, Statues   
Alloys, Mirror Manufacturing, Pharmaceutical Industry   

Biological Properties
  
  

Toxicity
Toxic   
Highly Toxic   

Present in Human Body
No   
Yes   

In Blood
Not Available   
0.01 Blood/mg dm-3   
23

In Bone
Not Available   
0.45 p.p.m.   
19

Physical Properties

Melting Point
1,132.00 °C   
39
Not Available   

Boiling Point
3,818.00 °C   
16
356.58 °C   
99+

Appearance
  
  

Physical State
Solid   
Liquid   

Color
Silvery Gray   
Silver   

Luster
Metallic   
NA   

Hardness
  
  

Mohs Hardness
6.00   
6
Not Available   

Brinell Hardness
2,350.00 MPa   
2
Not Available   

Vickers Hardness
1,960.00 MPa   
2
Not Available   

Speed of Sound
3,155.00 m/s   
25
1,451.40 m/s   
99+

Optical Properties
  
  

Refractive Index
Not Available   
1.00   
3

Reflectivity
Not Available   
73.00 %   
8

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
U   
Hg   

Isotopes
  
  

Known Isotopes
25   
14
34   
5

Electronegativity
  
  

Pauling Electronegativity
1.38   
28
2.00   
7

Sanderson Electronegativity
Not Available   
2.20   
7

Allred Rochow Electronegativity
1.22   
26
1.44   
17

Mulliken-Jaffe Electronegativity
Not Available   
1.81   
9

Allen Electronegativity
Not Available   
1.44   
30

Electropositivity
  
  

Pauling Electropositivity
2.62   
26
2.00   
99+

Ionization Energies
  
  

1st Energy Level
597.60 kJ/mol   
99+
1,007.10 kJ/mol   
4

2nd Energy Level
1,420.00 kJ/mol   
99+
1,810.00 kJ/mol   
20

3rd Energy Level
1,900.00 kJ/mol   
99+
3,300.00 kJ/mol   
20

4th Energy Level
3,145.00 kJ/mol   
99+
Not Available   

Electrochemical Equivalent
1.48 g/amp-hr   
99+
3.74 g/amp-hr   
10

Electron Work Function
3.63 eV   
30
4.49 eV   
15

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

Atomic Properties

Atomic Number
92   
26
80   
36

Electron Configuration
[Rn] 5f3 6d1 7s2   
[Xe] 4f14 5d10 6s2   

Crystal Structure
Orthorhombic (ORTH)   
Rhombohedral (RHO)   

Crystal Lattice
ORTH-Crystal-Structure-of-Uranium.jpg#100   
RHO-Crystal-Structure-of-Mercury.jpg#100   

Atom
  
  

Number of Protons
92   
26
80   
36

Number of Neutrons
146   
13
121   
22

Number of Electrons
92   
26
80   
36

Radius of an Atom
  
  

Atomic Radius
156.00 pm   
29
151.00 pm   
32

Covalent Radius
196.00 pm   
14
132.00 pm   
99+

Van der Waals Radius
186.00 pm   
33
155.00 pm   
99+

Atomic Weight
238.03 amu   
21
200.59 amu   
32

Atomic Volume
12.59 cm3/mol   
40
14.82 cm3/mol   
35

Adjacent Atomic Numbers
  
  

Previous Element
Gold
  

Next Element
Neptunium
  
Thallium
  

Valence Electron Potential
170.00 (-eV)   
4
28.20 (-eV)   
99+

Lattice Constant
295.08 pm   
99+
300.50 pm   
99+

Lattice Angles
π/2, π/2, π/2   
NA   

Lattice C/A Ratio
Not Available   
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
19.10 g/cm3   
17
13.53 g/cm3   
24

Density When Liquid (at m.p.)
17.30 g/cm3   
7
Not Available   

Tensile Strength
Not Available   
Not Available   

Viscosity
Not Available   
0.00   
1

Vapor Pressure
  
  

Vapor Pressure at 2000 K
0.01 (Pa)   
20
Not Available   

Elasticity properties
  
  

Shear Modulus
111.00 GPa   
10
Not Available   

Bulk Modulus
100.00 GPa   
16
Not Available   

Young's Modulus
208.00 GPa   
10
Not Available   

Poisson Ratio
0.23   
30
Not Available   

Other Mechanical Properties
Ductile, Malleable   
NA   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
18.80   
10
13.53   
16

Magnetic Ordering
Paramagnetic   
Diamagnetic   

Electrical Properties
  
  

Electrical Property
Poor Conductor   
Conductor   

Resistivity
0.28 nΩ·m   
99+
961.00 nΩ·m   
1

Electrical Conductivity
0.04 106/cm Ω   
37
0.01 106/cm Ω   
99+

Electron Affinity
Not Available   
0.00 kJ/mol   
40

Thermal Properties

Specific Heat
0.12 J/(kg K)   
40
0.14 J/(kg K)   
38

Molar Heat Capacity
27.67 J/mol·K   
15
27.98 J/mol·K   
13

Thermal Conductivity
27.50 W/m·K   
40
8.30 W/m·K   
99+

Critical Temperature
Not Available   
1,750.00 K   
6

Thermal Expansion
13.90 µm/(m·K)   
27
60.40 µm/(m·K)   
5

Enthalpy
  
  

Enthalpy of Vaporization
477.00 kJ/mol   
13
56.90 kJ/mol   
99+

Enthalpy of Fusion
15.48 kJ/mol   
19
2.29 kJ/mol   
99+

Enthalpy of Atomization
489.50 kJ/mol   
14
61.50 kJ/mol   
99+

Standard Molar Entropy
50.20 J/mol.K   
31
75.80 J/mol.K   
6

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