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Properties of Mercury and Lead

Mercury
Lead
Properties of Lead & Mercury


Physical Properties
Melting Point
Not Available   
327.50 °C   
99+
Boiling Point
356.58 °C   
99+
1,740.00 °C   
99+
Hardness
  
  
Mohs Hardness
Not Available   
1.50   
18
Brinell Hardness
Not Available   
38.00 MPa   
99+
Vickers Hardness
Not Available   
Not Available   
Optical Properties
  
  
Refractive Index
1.00   
3
Not Available   
Reflectivity
73.00 %   
8
Not Available   
Speed of Sound
1,451.40 m/s   
99+
1,190.00 m/s   
99+
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   
Pb   
Isotopes
  
  
Known Isotopes
34   
5
35   
4
Electronegativity
  
  
Pauling Electronegativity
2.00   
7
1.87   
13
Sanderson Electronegativity
2.20   
7
2.29   
4
Allred Rochow Electronegativity
1.44   
17
1.55   
11
Mulliken-Jaffe Electronegativity
1.81   
9
2.41   
2
Allen Electronegativity
1.44   
30
1.85   
8
Electropositivity
  
  
Pauling Electropositivity
2.00   
99+
1.67   
99+
Ionization Energies
  
  
1st Energy Level
1,007.10 kJ/mol   
4
715.60 kJ/mol   
31
2nd Energy Level
1,810.00 kJ/mol   
20
1,450.50 kJ/mol   
99+
3rd Energy Level
3,300.00 kJ/mol   
20
3,081.50 kJ/mol   
23
Electrochemical Equivalent
3.74 g/amp-hr   
10
3.87 g/amp-hr   
9
Electron Work Function
4.49 eV   
15
4.25 eV   
21
Other Chemical Properties
?
Flammable metals have ability to burn or ignite, causing fire or combustion.Flammability, 
?
Ionization is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons to form ions, often in conjunction with other chemical changes.Ionization, 
?
Solubility is a chemical property referring to the ability for a given substance, the solute, to dissolve in a solvent.Solubility   
?
Anti-corrosion metals have the protection on their surfaces which protect them from corroding in corrosive environments.Anti Corrosion, 
?
Ionization is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons to form ions, often in conjunction with other chemical changes.Ionization, 
?
Radioactive metals emit particles and radiation from their nuclei. This process comes in the picture because their nuclei experience the intense conflict between two strong forces. This metal also have radioactive isotopes.Radioactive Isotopes   
Mechanical Properties
Density
  
  
Density At Room Temperature
13.53 g/cm3   
24
11.34 g/cm3   
33
Density When Liquid (at m.p.)
Not Available   
10.66 g/cm3   
15
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available   
1.64 (Pa)   
7
Vapor Pressure at 2000 K
Not Available   
Not Available   
Tensile Strength
Not Available   
12.00 MPa   
20
Viscosity
0.00   
1
Not Available   
Elasticity properties
  
  
Shear Modulus
Not Available   
5.60 GPa   
99+
Bulk Modulus
Not Available   
46.00 GPa   
24
Young's Modulus
Not Available   
16.00 GPa   
99+
Poisson Ratio
Not Available   
0.44   
3
Other Mechanical Properties
NA   
?
Ductility of metals defines their ability to deform under tensile stress; this is often characterized by the metals ability to be stretched into a wire.Ductile, 
?
Malleability of metals defines their ability to deform under compressive stress; this is often characterized by the metals ability to form a thin sheet by hammering or rolling.Malleable   
Periodic Table
Symbol
Hg   
Pb   
Group Number
12   
6
14   
4
Period Number
6   
6   
Block
?
The d-block is on the middle of the periodic table and includes elements from columns 3 through 12. These elements are also known as the transition metals because they show a transitivity in their properties i.e. they show a trend in their properties.d block   
?
The p-block is on the right side of the periodic table and includes elements from the six columns beginning with column 13 and ending with column 18. Helium, though being in the top of group 18, is not included in the p-block.p block   
Element Family
?
What is Transition Metal? All transition metals are placed under the d-block from group number 3 to 12. Transition metals show characteristics like malleability, ductility and are good conductor of electricity.Transition Metal   
?
All post transition metals are placed in group number 13, 14 and 15 of periodic table. In fact, they are located between Transition Metals and Metalloids. Post transition metals have very poor mechanical properties.Post-​Transition   
Atomic Properties
Atomic Number
80   
36
82   
34
Atomic Weight
200.59 amu   
32
207.20 amu   
30
Atomic Volume
14.82 cm3/mol   
35
18.17 cm3/mol   
27
Electron Configuration
[Xe] 4f14 5d10 6s2   
[Xe] 4f14 5d10 6s2 6p2   
Valence Electron Potential
28.20 (-eV)   
99+
24.20 (-eV)   
99+
Atom
  
  
Number of Protons
80   
36
82   
34
Number of Neutrons
121   
22
125   
19
Number of Electrons
80   
36
82   
34
Crystal Structure
?
Rhombohedral crystal lattice structure comes under trigonal crystal structure. The Rhombohedral crystal structure is a term associated trigonal crystal structure with the rhombohedral lattice.Rhombohedral (RHO)   
?
In crystallography, the cubic (or isometric) crystal system is a crystal system where the unit cell is in the shape of a cube. This is one of the most common and simplest shapes found in crystals and minerals.Face Centered Cubic (FCC)   
Crystal Lattice
RHO-Crystal-Structure-of-Mercury.jpg#100   
FCC-Crystal-Structure-of-Lead.jpg#100   
Radius of an Atom
  
  
Atomic Radius
151.00 pm   
32
175.00 pm   
19
Covalent Radius
132.00 pm   
99+
146.00 pm   
38
Van der Waals Radius
155.00 pm   
99+
202.00 pm   
27
Lattice Constant
300.50 pm   
99+
495.08 pm   
16
Lattice Angles
NA   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
Adjacent Atomic Numbers
  
  
Next Element
Thallium
  
Bismuth
  
Previous Element
Gold
  
Thallium
  
Magnetic Properties
Electrical Properties
  
  
Resistivity
961.00 nΩ·m   
1
208.00 nΩ·m   
16
Electrical Conductivity
0.01 106/cm Ω   
99+
0.05 106/cm Ω   
36
Electron Affinity
0.00 kJ/mol   
40
35.10 kJ/mol   
28
Electrical Property
?
Conductor metals have very low resistance to electric currents. They can easily conduct electric current through them.Conductor   
?
Poor conductor metals have moderate resistance to electric currents. They can conduct electric current through them with very low efficiency.Poor Conductor   
Magnetic Characteristics
  
  
Specific Gravity
13.53   
16
11.35   
25
Magnetic Ordering
?
Diamagnetic metals produce a magnetic field opposite to the applied magnetic field. Thus, they are repelled by magnets and show magnetic nature.Diamagnetic   
?
Diamagnetic metals produce a magnetic field opposite to the applied magnetic field. Thus, they are repelled by magnets and show magnetic nature.Diamagnetic   
Permeability
Not Available   
Not Available   
Susceptibility
Not Available   
Not Available   
Thermal Properties
Specific Heat
0.14 J/(kg K)   
38
0.13 J/(kg K)   
39
Thermal Conductivity
8.30 W/m·K   
99+
35.30 W/m·K   
38
Critical Temperature
1,750.00 K   
6
Not Available   
Molar Heat Capacity
27.98 J/mol·K   
13
26.65 J/mol·K   
26
Thermal Expansion
60.40 µm/(m·K)   
5
28.90 µm/(m·K)   
13
Standard Molar Entropy
75.80 J/mol.K   
6
64.80 J/mol.K   
17
Enthalpy
  
  
Enthalpy of Vaporization
56.90 kJ/mol   
99+
179.40 kJ/mol   
99+
Enthalpy of Fusion
2.29 kJ/mol   
99+
4.77 kJ/mol   
99+
Enthalpy of Atomization
61.50 kJ/mol   
99+
194.60 kJ/mol   
99+
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