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Properties of Bismuth and Polonium

Bismuth
Polonium
Properties of Polonium & Bismuth


Physical Properties
Melting Point
271.30 °C   
99+
254.00 °C   
99+
Boiling Point
1,560.00 °C   
99+
962.00 °C   
99+
Hardness
  
  
Mohs Hardness
2.25   
15
Not Available   
Brinell Hardness
70.00 MPa   
99+
Not Available   
Vickers Hardness
Not Available   
Not Available   
Optical Properties
  
  
Refractive Index
Not Available   
Not Available   
Reflectivity
Not Available   
Not Available   
Speed of Sound
1,790.00 m/s   
99+
Not Available   
Allotropes
No   
Yes   
α Allotropes
Not Available   
?
simple cubic (metallic)Α-Polonium   
β Allotropes
Not Available   
?
rhombohedral (metallic)Β-Polonium   
γ Allotropes
Not Available   
Not Available   
Chemical Properties
Chemical Formula
Bi   
Po   
Isotopes
  
  
Known Isotopes
33   
6
29   
10
Electronegativity
  
  
Pauling Electronegativity
2.02   
6
2.00   
7
Sanderson Electronegativity
2.34   
3
Not Available   
Allred Rochow Electronegativity
1.67   
6
1.76   
2
Mulliken-Jaffe Electronegativity
2.15   
4
2.48   
1
Allen Electronegativity
2.01   
4
2.19   
2
Electropositivity
  
  
Pauling Electropositivity
1.98   
99+
2.00   
99+
Ionization Energies
  
  
1st Energy Level
703.00 kJ/mol   
35
812.10 kJ/mol   
14
2nd Energy Level
1,610.00 kJ/mol   
33
Not Available   
3rd Energy Level
2,466.00 kJ/mol   
99+
Not Available   
Electrochemical Equivalent
2.60 g/amp-hr   
19
3.90 g/amp-hr   
8
Electron Work Function
4.22 eV   
22
Not Available   
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   
?
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   
Mechanical Properties
Density
  
  
Density At Room Temperature
9.78 g/cm3   
39
9.20 g/cm3   
99+
Density When Liquid (at m.p.)
10.05 g/cm3   
18
9.40 g/cm3   
19
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   
Not Available   
Elasticity properties
  
  
Shear Modulus
12.00 GPa   
99+
Not Available   
Bulk Modulus
31.00 GPa   
38
Not Available   
Young's Modulus
32.00 GPa   
99+
Not Available   
Poisson Ratio
0.33   
11
Not Available   
Other Mechanical Properties
NA   
NA   
Periodic Table
Symbol
Bi   
Po   
Group Number
15   
3
16   
2
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 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
?
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   
?
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
83   
33
84   
32
Atomic Weight
208.98 amu   
29
209.00 amu   
28
Atomic Volume
21.30 cm3/mol   
14
22.23 cm3/mol   
13
Electron Configuration
[Xe] 4f14 5d10 6s2 6p3   
[Xe] 4f14 5d10 6s2 6p4   
Valence Electron Potential
41.90 (-eV)   
99+
Not Available   
Atom
  
  
Number of Protons
83   
33
84   
32
Number of Neutrons
126   
18
125   
19
Number of Electrons
83   
33
84   
32
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)   
?
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)   
Crystal Lattice
RHO-Crystal-Structure-of-Bismuth.jpg#100   
MON-Crystal-Structure-of-Polonium.jpg#100   
Radius of an Atom
  
  
Atomic Radius
156.00 pm   
29
168.00 pm   
23
Covalent Radius
148.00 pm   
36
140.00 pm   
99+
Van der Waals Radius
207.00 pm   
26
197.00 pm   
29
Lattice Constant
667.40 pm   
2
335.90 pm   
99+
Lattice Angles
NA   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
Adjacent Atomic Numbers
  
  
Next Element
Polonium
  
Francium
  
Previous Element
Lead
  
Bismuth
  
Magnetic Properties
Electrical Properties
  
  
Resistivity
1.29 nΩ·m   
99+
0.40 nΩ·m   
99+
Electrical Conductivity
0.01 106/cm Ω   
99+
0.02 106/cm Ω   
99+
Electron Affinity
91.20 kJ/mol   
11
183.30 kJ/mol   
3
Electrical Property
?
Semiconductor metals have conductivity between that of a conductor and an insulator.Semiconductor   
?
Conductor metals have very low resistance to electric currents. They can easily conduct electric current through them.Conductor   
Magnetic Characteristics
  
  
Specific Gravity
9.79   
30
9.32   
31
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
0.00 H/m   
6
Not Available   
Susceptibility
0.00   
6
Not Available   
Thermal Properties
Specific Heat
0.12 J/(kg K)   
40
0.12 J/(kg K)   
40
Thermal Conductivity
7.97 W/m·K   
99+
20.00 W/m·K   
99+
Critical Temperature
Not Available   
Not Available   
Molar Heat Capacity
25.52 J/mol·K   
37
26.40 J/mol·K   
28
Thermal Expansion
13.40 µm/(m·K)   
28
23.50 µm/(m·K)   
16
Standard Molar Entropy
56.70 J/mol.K   
24
Not Available   
Enthalpy
  
  
Enthalpy of Vaporization
151.00 kJ/mol   
99+
60.30 kJ/mol   
99+
Enthalpy of Fusion
10.90 kJ/mol   
33
13.00 kJ/mol   
26
Enthalpy of Atomization
207.10 kJ/mol   
99+
134.00 kJ/mol   
99+
All >>
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