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Actinium vs Bismuth

Actinium
Bismuth
Bismuth vs Actinium


Periodic Table
Symbol
Ac  
Bi  
Group Number
Not Available  
15  
3
Period Number
7  
6  
Block
f block  
p block  
Element Family
Actinide  
Post-​Transition  
CAS Number
7440348  
99+
7440699  
22
Space Group Name
Fm_ 3m  
C12/m1  
Space Group Number
225.00  
2
12.00  
12
Facts
Interesting Facts
Not Available  
  • Bismuth metal is soluble and reacts with concentrated nitric acid.
  • It oxides are used as a yellow pigment in paint. Bismuth chloride oxide BiClO gives a pearly texture to cosmetics.
  
Sources
Obtained by Treating Radium with Neutrons, Ores of metals  
Found in Minerals, Mining, Ores of Minerals  
History
  
  
Who Discovered
Friedrich Oskar Giesel  
Claude François Geoffroy  
Discovery
In 1902  
In 1753  
Abundance
  
  
Abundance In Universe
Not Available  
7 * 10-8 %  
25
Abundance In Sun
~-9999 %  
~0.000006 %  
14
Abundance In Meteorites
Not Available  
0.00 %  
99+
Abundance In Earth's Crust
Not Available  
0.00 %  
99+
Abundance In Oceans
Not Available  
0.00 %  
24
Uses
Uses & Benefits
  • Actinium metal has a great source of alpha rays but it is hardly used outside research purpose.
  
  • Tin and bismuth alloys have a very low melting point and hence it is used in fire detector and the fire extinguishers. It also used in electric solders and fuses.
  
Industrial Uses
NA  
Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry  
Medical Uses
NA  
Pharmaceutical Industry  
Other Uses
Alloys, Nuclear Research, Research Purposes  
Alloys  
Biological Properties
  
  
Toxicity
Toxic  
Low Toxic  
Present in Human Body
No  
Yes  
In Blood
0.00 Blood/mg dm-3  
37
0.02 Blood/mg dm-3  
20
In Bone
0.00 p.p.m.  
36
0.20 p.p.m.  
22
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+
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery White  
Silver  
Luster
NA  
Metallic  
Hardness
  
  
Mohs Hardness
Not Available  
2.25  
15
Brinell Hardness
Not Available  
70.00 MPa  
99+
Speed of Sound
Not Available  
1,790.00 m/s  
99+
Optical Properties
  
  
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+
4th Energy Level
4,700.00 kJ/mol  
23
4,370.00 kJ/mol  
28
5th Energy Level
Not Available  
5,400.00 kJ/mol  
30
6th Energy Level
Not Available  
8,520.00 kJ/mol  
19
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, Radioactive Isotopes, Radioactivity, Solubility  
Ionization, Radioactive Isotopes, Solubility  
Atomic Properties
Atomic Number
89  
29
83  
33
Electron Configuration
[Rn] 6d1 7s2  
[Xe] 4f14 5d10 6s2 6p3  
Crystal Structure
Face Centered Cubic (FCC)  
Rhombohedral (RHO)  
Crystal Lattice
FCC-Crystal-Structure-of-Actinium.jpg#100  
RHO-Crystal-Structure-of-Bismuth.jpg#100  
Atom
  
  
Number of Protons
89  
29
83  
33
Number of Neutrons
138  
16
126  
18
Number of Electrons
89  
29
83  
33
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
Atomic Weight
227.00 amu  
25
208.98 amu  
29
Atomic Volume
22.54 cm3/mol  
11
21.30 cm3/mol  
14
Adjacent Atomic Numbers
  
  
Previous Element
Radium
  
Lead
  
Next Element
Thorium
  
Polonium
  
Valence Electron Potential
38.60 (-eV)  
99+
41.90 (-eV)  
99+
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  
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
Tensile Strength
Not Available  
Not Available  
Viscosity
Not Available  
Not Available  
Vapor Pressure
  
  
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  
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
10.07  
28
9.79  
30
Magnetic Ordering
Paramagnetic  
Diamagnetic  
Permeability
Not Available  
0.00 H/m  
6
Susceptibility
Not Available  
0.00  
6
Electrical Properties
  
  
Electrical Property
Unknown  
Semiconductor  
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
Thermal Properties
Specific Heat
0.12 J/(kg K)  
40
0.12 J/(kg K)  
40
Molar Heat Capacity
27.20 J/mol·K  
18
25.52 J/mol·K  
37
Thermal Conductivity
12.00 W/m·K  
99+
7.97 W/m·K  
99+
Critical Temperature
Not Available  
Not Available  
Thermal Expansion
Not Available  
13.40 µm/(m·K)  
28
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+
Standard Molar Entropy
56.50 J/mol.K  
25
56.70 J/mol.K  
24
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