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Properties of Polonium and Mercury


Properties of Mercury & Polonium


Physical Properties

Melting Point
254.00 °C   
99+
Not Available   

Boiling Point
962.00 °C   
99+
356.58 °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
Not Available   
1.00   
3

Reflectivity
Not Available   
73.00 %   
8

Speed of Sound
Not Available   
1,451.40 m/s   
99+

Allotropes
Yes   
No   

α Allotropes
?
simple cubic (metallic)Α-Polonium
  
Not Available   

β Allotropes
?
rhombohedral (metallic)Β-Polonium
  
Not Available   

γ Allotropes
Not Available   
Not Available   

Chemical Properties

Chemical Formula
Po   
Hg   

Isotopes
  
  

Known Isotopes
29   
10
34   
5

Electronegativity
  
  

Pauling Electronegativity
2.00   
7
2.00   
7

Sanderson Electronegativity
Not Available   
2.20   
7

Allred Rochow Electronegativity
1.76   
2
1.44   
17

Mulliken-Jaffe Electronegativity
2.48   
1
1.81   
9

Allen Electronegativity
2.19   
2
1.44   
30

Electropositivity
  
  

Pauling Electropositivity
2.00   
99+
2.00   
99+

Ionization Energies
  
  

1st Energy Level
812.10 kJ/mol   
14
1,007.10 kJ/mol   
4

2nd Energy Level
Not Available   
1,810.00 kJ/mol   
20

3rd Energy Level
Not Available   
3,300.00 kJ/mol   
20

Electrochemical Equivalent
3.90 g/amp-hr   
8
3.74 g/amp-hr   
10

Electron Work Function
Not Available   
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
9.20 g/cm3   
99+
13.53 g/cm3   
24

Density When Liquid (at m.p.)
9.40 g/cm3   
19
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
Not Available   
0.00   
1

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
Po   
Hg   

Group Number
16   
2
12   
6

Period Number
6   
6   

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
  
?
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
?
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
  
?
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
84   
32
80   
36

Atomic Weight
209.00 amu   
28
200.59 amu   
32

Atomic Volume
22.23 cm3/mol   
13
14.82 cm3/mol   
35

Electron Configuration
[Xe] 4f14 5d10 6s2 6p4   
[Xe] 4f14 5d10 6s2   

Valence Electron Potential
Not Available   
28.20 (-eV)   
99+

Atom
  
  

Number of Protons
84   
32
80   
36

Number of Neutrons
125   
19
121   
22

Number of Electrons
84   
32
80   
36

Crystal Structure
?
The mono-clinic crystal structure is one of the seven lattice point groups. Here vectors of crystal have unequal lengths. Here vectors of crystal have unequal lengths and have two vectors perpendicular to the 3rd oneMonoclinic (MON)
  
?
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
MON-Crystal-Structure-of-Polonium.jpg#100   
RHO-Crystal-Structure-of-Mercury.jpg#100   

Radius of an Atom
  
  

Atomic Radius
168.00 pm   
23
151.00 pm   
32

Covalent Radius
140.00 pm   
99+
132.00 pm   
99+

Van der Waals Radius
197.00 pm   
29
155.00 pm   
99+

Lattice Constant
335.90 pm   
99+
300.50 pm   
99+

Lattice Angles
π/2, π/2, π/2   
NA   

Lattice C/A Ratio
Not Available   
Not Available   

Adjacent Atomic Numbers
  
  

Next Element
Francium
  
Thallium
  

Previous Element
Bismuth
  
Gold
  

Magnetic Properties

Electrical Properties
  
  

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

Electrical Conductivity
0.02 106/cm Ω   
99+
0.01 106/cm Ω   
99+

Electron Affinity
183.30 kJ/mol   
3
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
9.32   
31
13.53   
16

Magnetic Ordering
?
Nonmagnetic metals are non magnetic in nature and do not show or exhibit any magnetic properties.Nonmagnetic
  
?
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
0.12 J/(kg K)   
40
0.14 J/(kg K)   
38

Thermal Conductivity
20.00 W/m·K   
99+
8.30 W/m·K   
99+

Critical Temperature
Not Available   
1,750.00 K   
6

Molar Heat Capacity
26.40 J/mol·K   
28
27.98 J/mol·K   
13

Thermal Expansion
23.50 µm/(m·K)   
16
60.40 µm/(m·K)   
5

Standard Molar Entropy
Not Available   
75.80 J/mol.K   
6

Enthalpy
  
  

Enthalpy of Vaporization
60.30 kJ/mol   
99+
56.90 kJ/mol   
99+

Enthalpy of Fusion
13.00 kJ/mol   
26
2.29 kJ/mol   
99+

Enthalpy of Atomization
134.00 kJ/mol   
99+
61.50 kJ/mol   
99+

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