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Properties of Mercury and Radium

Mercury
Radium
Properties of Radium & Mercury


Physical Properties
Melting Point
Not Available   
700.00 °C   
99+
Boiling Point
356.58 °C   
99+
1,737.00 °C   
99+
Hardness
  
  
Mohs Hardness
Not Available   
Not Available   
Brinell Hardness
Not Available   
Not Available   
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+
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   
Ra   
Isotopes
  
  
Known Isotopes
34   
5
33   
6
Electronegativity
  
  
Pauling Electronegativity
2.00   
7
0.90   
99+
Sanderson Electronegativity
2.20   
7
Not Available   
Allred Rochow Electronegativity
1.44   
17
0.97   
38
Mulliken-Jaffe Electronegativity
1.81   
9
0.92   
20
Allen Electronegativity
1.44   
30
0.89   
99+
Electropositivity
  
  
Pauling Electropositivity
2.00   
99+
3.10   
5
Ionization Energies
  
  
1st Energy Level
1,007.10 kJ/mol   
4
509.30 kJ/mol   
99+
2nd Energy Level
1,810.00 kJ/mol   
20
979.00 kJ/mol   
99+
3rd Energy Level
3,300.00 kJ/mol   
20
Not Available   
Electrochemical Equivalent
3.74 g/amp-hr   
10
4.22 g/amp-hr   
6
Electron Work Function
4.49 eV   
15
Not Available   
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   
?
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, 
?
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.Radioactivity   
Mechanical Properties
Density
  
  
Density At Room Temperature
13.53 g/cm3   
24
5.50 g/cm3   
99+
Density When Liquid (at m.p.)
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available   
Not Available   
Vapor Pressure at 2000 K
Not Available   
Not Available   
Tensile Strength
Not Available   
Not Available   
Viscosity
0.00   
1
Not Available   
Elasticity properties
  
  
Shear Modulus
Not Available   
Not Available   
Bulk Modulus
Not Available   
Not Available   
Young's Modulus
Not Available   
Not Available   
Poisson Ratio
Not Available   
Not Available   
Other Mechanical Properties
NA   
NA   
Periodic Table
Symbol
Hg   
Ra   
Group Number
12   
6
2   
16
Period Number
6   
7   
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 s-block is on the left side of the periodic table that includes elements from the first two columns, the alkali metals (group 1) and alkaline earth metals (group 2), plus helium.s 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 alkaline earth metals are placed under group number 2 and s-block of periodic table. These metals are somewhat reactive at standard conditions. Alkaline earth metals appear shiny, silvery-white and are found in the earth’s crust.Alkaline Earth   
Atomic Properties
Atomic Number
80   
36
88   
30
Atomic Weight
200.59 amu   
32
226.00 amu   
26
Atomic Volume
14.82 cm3/mol   
35
45.20 cm3/mol   
4
Electron Configuration
[Xe] 4f14 5d10 6s2   
[Rn] 7s2   
Valence Electron Potential
28.20 (-eV)   
99+
20.10 (-eV)   
99+
Atom
  
  
Number of Protons
80   
36
88   
30
Number of Neutrons
121   
22
138   
16
Number of Electrons
80   
36
88   
30
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)   
?
BCC is a basis type of cubic crystal structure. In crystallography, the cubic crystals structure is a crystal system where the unit cell has a cube shaped structure. This is one of the simplest crystal structure found in crystals of metal.Body Centered Cubic (BCC)   
Crystal Lattice
RHO-Crystal-Structure-of-Mercury.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Radius of an Atom
  
  
Atomic Radius
151.00 pm   
32
Not Available   
Covalent Radius
132.00 pm   
99+
221.00 pm   
3
Van der Waals Radius
155.00 pm   
99+
283.00 pm   
4
Lattice Constant
300.50 pm   
99+
514.80 pm   
13
Lattice Angles
NA   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
Adjacent Atomic Numbers
  
  
Next Element
Thallium
  
Actinium
  
Previous Element
Gold
  
Francium
  
Magnetic Properties
Electrical Properties
  
  
Resistivity
961.00 nΩ·m   
1
100.00 nΩ·m   
31
Electrical Conductivity
0.01 106/cm Ω   
99+
Not Available   
Electron Affinity
0.00 kJ/mol   
40
Not Available   
Electrical Property
?
Conductor metals have very low resistance to electric currents. They can easily conduct electric current through them.Conductor   
NA   
Magnetic Characteristics
  
  
Specific Gravity
13.53   
16
5.00   
99+
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   
?
Nonmagnetic metals are non magnetic in nature and do not show or exhibit any magnetic properties.Nonmagnetic   
Permeability
Not Available   
Not Available   
Susceptibility
Not Available   
Not Available   
Thermal Properties
Specific Heat
0.14 J/(kg K)   
38
0.12 J/(kg K)   
40
Thermal Conductivity
8.30 W/m·K   
99+
18.60 W/m·K   
99+
Critical Temperature
1,750.00 K   
6
Not Available   
Molar Heat Capacity
27.98 J/mol·K   
13
Not Available   
Thermal Expansion
60.40 µm/(m·K)   
5
Not Available   
Standard Molar Entropy
75.80 J/mol.K   
6
71.00 J/mol.K   
14
Enthalpy
  
  
Enthalpy of Vaporization
56.90 kJ/mol   
99+
Not Available   
Enthalpy of Fusion
2.29 kJ/mol   
99+
Not Available   
Enthalpy of Atomization
61.50 kJ/mol   
99+
163.00 kJ/mol   
99+
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