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Properties of Lanthanum and Mercury

Lanthanum
Mercury
Properties of Mercury & Lanthanum


Physical Properties
Melting Point
920.00 °C   
99+
Not Available   
Boiling Point
3,469.00 °C   
18
356.58 °C   
99+
Hardness
  
  
Mohs Hardness
2.50   
14
Not Available   
Brinell Hardness
350.00 MPa   
30
Not Available   
Vickers Hardness
360.00 MPa   
26
Not Available   
Optical Properties
  
  
Refractive Index
Not Available   
1.00   
3
Reflectivity
Not Available   
73.00 %   
8
Speed of Sound
2,475.00 m/s   
37
1,451.40 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
La   
Hg   
Isotopes
  
  
Known Isotopes
31   
8
34   
5
Electronegativity
  
  
Pauling Electronegativity
1.10   
99+
2.00   
7
Sanderson Electronegativity
Not Available   
2.20   
7
Allred Rochow Electronegativity
1.08   
31
1.44   
17
Mulliken-Jaffe Electronegativity
Not Available   
1.81   
9
Allen Electronegativity
Not Available   
1.44   
30
Electropositivity
  
  
Pauling Electropositivity
2.90   
10
2.00   
99+
Ionization Energies
  
  
1st Energy Level
538.10 kJ/mol   
99+
1,007.10 kJ/mol   
4
2nd Energy Level
1,067.00 kJ/mol   
99+
1,810.00 kJ/mol   
20
3rd Energy Level
1,850.30 kJ/mol   
99+
3,300.00 kJ/mol   
20
Electrochemical Equivalent
1.73 g/amp-hr   
99+
3.74 g/amp-hr   
10
Electron Work Function
3.50 eV   
31
4.49 eV   
15
Other Chemical Properties
?
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, 
?
Solubility is a chemical property referring to the ability for a given substance, the solute, to dissolve in a solvent.Solubility   
?
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   
Mechanical Properties
Density
  
  
Density At Room Temperature
6.16 g/cm3   
99+
13.53 g/cm3   
24
Density When Liquid (at m.p.)
5.94 g/cm3   
99+
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available   
Not Available   
Vapor Pressure at 2000 K
0.98 (Pa)   
15
Not Available   
Tensile Strength
Not Available   
Not Available   
Viscosity
Not Available   
0.00   
1
Elasticity properties
  
  
Shear Modulus
14.30 GPa   
40
Not Available   
Bulk Modulus
27.90 GPa   
99+
Not Available   
Young's Modulus
36.60 GPa   
99+
Not Available   
Poisson Ratio
0.28   
17
Not Available   
Other Mechanical Properties
?
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   
NA   
Periodic Table
Symbol
La   
Hg   
Group Number
Not Available   
12   
6
Period Number
6   
6   
Block
?
The f-block is in the center-left of a 32-column periodic table but in the footnoted appendage of 18-column tables. These elements are not generally considered as part of any group. They are often called inner transition metals.f 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   
Element Family
?
Total 15 metals are included in Lanthanide series from Lanthanum to Lutetium. Lanthanide series is located under f and d block of the periodic table.Lanthanide   
?
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   
Atomic Properties
Atomic Number
57   
99+
80   
36
Atomic Weight
138.91 amu   
99+
200.59 amu   
32
Atomic Volume
20.73 cm3/mol   
16
14.82 cm3/mol   
35
Electron Configuration
[Xe] 5d2 6s2   
[Xe] 4f14 5d10 6s2   
Valence Electron Potential
40.71 (-eV)   
99+
28.20 (-eV)   
99+
Atom
  
  
Number of Protons
57   
99+
80   
36
Number of Neutrons
82   
99+
121   
22
Number of Electrons
57   
99+
80   
36
Crystal Structure
?
In crystallography, the hexagonal crystal structure and its double hexagonal crystal structure is one of the 7 crystal structure, The hexagonal lattice system consists of just one Bravais lattice type: the hexagonal shape.Double Hexagonal Close Packed (DHCP)   
?
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)   
Crystal Lattice
DHCP-Crystal-Structure-of-Lanthanum.jpg#100   
RHO-Crystal-Structure-of-Mercury.jpg#100   
Radius of an Atom
  
  
Atomic Radius
187.00 pm   
8
151.00 pm   
32
Covalent Radius
207.00 pm   
6
132.00 pm   
99+
Van der Waals Radius
240.00 pm   
13
155.00 pm   
99+
Lattice Constant
377.20 pm   
28
300.50 pm   
99+
Lattice Angles
π/2, π/2, 2 π/3   
NA   
Lattice C/A Ratio
1.62   
2
Not Available   
Adjacent Atomic Numbers
  
  
Next Element
Cerium
  
Thallium
  
Previous Element
Barium
  
Gold
  
Magnetic Properties
Electrical Properties
  
  
Resistivity
615.00 nΩ·m   
7
961.00 nΩ·m   
1
Electrical Conductivity
0.01 106/cm Ω   
99+
0.01 106/cm Ω   
99+
Electron Affinity
48.00 kJ/mol   
23
0.00 kJ/mol   
40
Electrical Property
?
Conductor metals have very low resistance to electric currents. They can easily conduct electric current through them.Conductor   
?
Conductor metals have very low resistance to electric currents. They can easily conduct electric current through them.Conductor   
Magnetic Characteristics
  
  
Specific Gravity
6.17   
99+
13.53   
16
Magnetic Ordering
?
Paramagnetic metals are slightly attracted by magnet, but they can’t retain the magnetic effect once they are removed from the magnetic field.Paramagnetic   
?
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
0.19 J/(kg K)   
32
0.14 J/(kg K)   
38
Thermal Conductivity
13.40 W/m·K   
99+
8.30 W/m·K   
99+
Critical Temperature
Not Available   
1,750.00 K   
6
Molar Heat Capacity
27.11 J/mol·K   
21
27.98 J/mol·K   
13
Thermal Expansion
12.10 µm/(m·K)   
32
60.40 µm/(m·K)   
5
Standard Molar Entropy
56.90 J/mol.K   
23
75.80 J/mol.K   
6
Enthalpy
  
  
Enthalpy of Vaporization
399.60 kJ/mol   
17
56.90 kJ/mol   
99+
Enthalpy of Fusion
6.20 kJ/mol   
99+
2.29 kJ/mol   
99+
Enthalpy of Atomization
431.00 kJ/mol   
16
61.50 kJ/mol   
99+
All >>
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