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Properties of Bismuth and Protactinium

Bismuth
Protactinium
Properties of Protactinium & Bismuth


Physical Properties
Melting Point
271.30 °C   
99+
1,568.00 °C   
21
Boiling Point
1,560.00 °C   
99+
4,027.00 °C   
12
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   
No   
α Allotropes
Not Available   
Not Available   
β Allotropes
Not Available   
Not Available   
γ Allotropes
Not Available   
Not Available   
Chemical Properties
Chemical Formula
Bi   
Pa   
Isotopes
  
  
Known Isotopes
33   
6
27   
12
Electronegativity
  
  
Pauling Electronegativity
2.02   
6
1.50   
27
Sanderson Electronegativity
2.34   
3
Not Available   
Allred Rochow Electronegativity
1.67   
6
1.14   
28
Mulliken-Jaffe Electronegativity
2.15   
4
Not Available   
Allen Electronegativity
2.01   
4
Not Available   
Electropositivity
  
  
Pauling Electropositivity
1.98   
99+
2.50   
27
Ionization Energies
  
  
1st Energy Level
703.00 kJ/mol   
35
568.00 kJ/mol   
99+
2nd Energy Level
1,610.00 kJ/mol   
33
1,128.00 kJ/mol   
99+
3rd Energy Level
2,466.00 kJ/mol   
99+
1,814.00 kJ/mol   
99+
Electrochemical Equivalent
2.60 g/amp-hr   
19
1.72 g/amp-hr   
99+
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, 
?
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
9.78 g/cm3   
39
15.37 g/cm3   
20
Density When Liquid (at m.p.)
10.05 g/cm3   
18
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   
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   
Unknown   
Periodic Table
Symbol
Bi   
Pa   
Group Number
15   
3
Not Available   
Period Number
6   
7   
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 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   
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   
?
Total 15 metals are included in actinide series, from Actinium to Lawrencium. Actinide series is located under f and d block of the periodic table.Actinide   
Atomic Properties
Atomic Number
83   
33
91   
27
Atomic Weight
208.98 amu   
29
231.04 amu   
24
Atomic Volume
21.30 cm3/mol   
14
15.00 cm3/mol   
34
Electron Configuration
[Xe] 4f14 5d10 6s2 6p3   
[Rn] 5f2 6d1 7s2   
Valence Electron Potential
41.90 (-eV)   
99+
92.00 (-eV)   
11
Atom
  
  
Number of Protons
83   
33
91   
27
Number of Neutrons
126   
18
122   
21
Number of Electrons
83   
33
91   
27
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 tetragonal crystal structure occur as a result of stretching a cubic lattice along one of its lattice vectors due to which cube becomes a rectangular prism with a square shape at base.Tetragonal (TETR)   
Crystal Lattice
RHO-Crystal-Structure-of-Bismuth.jpg#100   
TETR-Crystal-Structure-of-Protactinium.jpg#100   
Radius of an Atom
  
  
Atomic Radius
156.00 pm   
29
163.00 pm   
25
Covalent Radius
148.00 pm   
36
200.00 pm   
11
Van der Waals Radius
207.00 pm   
26
243.00 pm   
11
Lattice Constant
667.40 pm   
2
392.50 pm   
23
Lattice Angles
NA   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
Adjacent Atomic Numbers
  
  
Next Element
Polonium
  
Uranium
  
Previous Element
Lead
  
Thorium
  
Magnetic Properties
Electrical Properties
  
  
Resistivity
1.29 nΩ·m   
99+
177.00 nΩ·m   
21
Electrical Conductivity
0.01 106/cm Ω   
99+
0.05 106/cm Ω   
34
Electron Affinity
91.20 kJ/mol   
11
Not Available   
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
15.37   
12
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   
?
Paramagnetic metals are slightly attracted by magnet, but they can’t retain the magnetic effect once they are removed from the magnetic field.Paramagnetic   
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+
47.00 W/m·K   
32
Critical Temperature
Not Available   
Not Available   
Molar Heat Capacity
25.52 J/mol·K   
37
Not Available   
Thermal Expansion
13.40 µm/(m·K)   
28
9.90 µm/(m·K)   
40
Standard Molar Entropy
56.70 J/mol.K   
24
198.10 J/mol.K   
1
Enthalpy
  
  
Enthalpy of Vaporization
151.00 kJ/mol   
99+
Not Available   
Enthalpy of Fusion
10.90 kJ/mol   
33
12.34 kJ/mol   
28
Enthalpy of Atomization
207.10 kJ/mol   
99+
Not Available   
All >>
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