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Properties of Actinium and Bismuth

Actinium
Bismuth
Properties of Bismuth & Actinium


Physical Properties
Melting Point
1,227.00 °C   
38
271.30 °C   
99+
Boiling Point
3,200.00 °C   
26
1,560.00 °C   
99+
Hardness
  
  
Mohs Hardness
Not Available   
2.25   
15
Brinell Hardness
Not Available   
70.00 MPa   
99+
Vickers Hardness
Not Available   
Not Available   
Optical Properties
  
  
Refractive Index
Not Available   
Not Available   
Reflectivity
Not Available   
Not Available   
Speed of Sound
Not Available   
1,790.00 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
Ac   
Bi   
Isotopes
  
  
Known Isotopes
29   
10
33   
6
Electronegativity
  
  
Pauling Electronegativity
1.10   
99+
2.02   
6
Sanderson Electronegativity
Not Available   
2.34   
3
Allred Rochow Electronegativity
1.00   
36
1.67   
6
Mulliken-Jaffe Electronegativity
Not Available   
2.15   
4
Allen Electronegativity
Not Available   
2.01   
4
Electropositivity
  
  
Pauling Electropositivity
2.90   
10
1.98   
99+
Ionization Energies
  
  
1st Energy Level
499.00 kJ/mol   
99+
703.00 kJ/mol   
35
2nd Energy Level
1,170.00 kJ/mol   
99+
1,610.00 kJ/mol   
33
3rd Energy Level
1,900.00 kJ/mol   
99+
2,466.00 kJ/mol   
99+
Electrochemical Equivalent
2.82 g/amp-hr   
18
2.60 g/amp-hr   
19
Electron Work Function
Not Available   
4.22 eV   
22
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, 
?
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, 
?
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
10.00 g/cm3   
37
9.78 g/cm3   
39
Density When Liquid (at m.p.)
Not Available   
10.05 g/cm3   
18
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
Not Available   
12.00 GPa   
99+
Bulk Modulus
Not Available   
31.00 GPa   
38
Young's Modulus
Not Available   
32.00 GPa   
99+
Poisson Ratio
Not Available   
0.33   
11
Other Mechanical Properties
NA   
NA   
Periodic Table
Symbol
Ac   
Bi   
Group Number
Not Available   
15   
3
Period Number
7   
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 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
?
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   
?
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
89   
29
83   
33
Atomic Weight
227.00 amu   
25
208.98 amu   
29
Atomic Volume
22.54 cm3/mol   
11
21.30 cm3/mol   
14
Electron Configuration
[Rn] 6d1 7s2   
[Xe] 4f14 5d10 6s2 6p3   
Valence Electron Potential
38.60 (-eV)   
99+
41.90 (-eV)   
99+
Atom
  
  
Number of Protons
89   
29
83   
33
Number of Neutrons
138   
16
126   
18
Number of Electrons
89   
29
83   
33
Crystal Structure
?
In crystallography, the cubic (or isometric) crystal system is a crystal system where the unit cell is in the shape of a cube. This is one of the most common and simplest shapes found in crystals and minerals.Face Centered Cubic (FCC)   
?
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
FCC-Crystal-Structure-of-Actinium.jpg#100   
RHO-Crystal-Structure-of-Bismuth.jpg#100   
Radius of an Atom
  
  
Atomic Radius
195.00 pm   
7
156.00 pm   
29
Covalent Radius
Not Available   
148.00 pm   
36
Van der Waals Radius
Not Available   
207.00 pm   
26
Lattice Constant
567.00 pm   
8
667.40 pm   
2
Lattice Angles
π/2, π/2, π/2   
NA   
Lattice C/A Ratio
Not Available   
Not Available   
Adjacent Atomic Numbers
  
  
Next Element
Thorium
  
Polonium
  
Previous Element
Radium
  
Lead
  
Magnetic Properties
Electrical Properties
  
  
Resistivity
Not Available   
1.29 nΩ·m   
99+
Electrical Conductivity
Not Available   
0.01 106/cm Ω   
99+
Electron Affinity
Not Available   
91.20 kJ/mol   
11
Electrical Property
Unknown   
?
Semiconductor metals have conductivity between that of a conductor and an insulator.Semiconductor   
Magnetic Characteristics
  
  
Specific Gravity
10.07   
28
9.79   
30
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   
0.00 H/m   
6
Susceptibility
Not Available   
0.00   
6
Thermal Properties
Specific Heat
0.12 J/(kg K)   
40
0.12 J/(kg K)   
40
Thermal Conductivity
12.00 W/m·K   
99+
7.97 W/m·K   
99+
Critical Temperature
Not Available   
Not Available   
Molar Heat Capacity
27.20 J/mol·K   
18
25.52 J/mol·K   
37
Thermal Expansion
Not Available   
13.40 µm/(m·K)   
28
Standard Molar Entropy
56.50 J/mol.K   
25
56.70 J/mol.K   
24
Enthalpy
  
  
Enthalpy of Vaporization
Not Available   
151.00 kJ/mol   
99+
Enthalpy of Fusion
Not Available   
10.90 kJ/mol   
33
Enthalpy of Atomization
301.00 kJ/mol   
36
207.10 kJ/mol   
99+
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