Symbol
Bi
  
Ac
  
Group Number
Not Available
  
Period Number
6
  
7
  
Block
p block
  
f block
  
Element Family
Post-Transition
  
Actinide
  
Space Group Name
C12/m1
  
Fm_ 3m
  
Interesting Facts
- 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.
  
Not Available
  
Sources
Found in Minerals, Mining, Ores of Minerals
  
Obtained by Treating Radium with Neutrons, Ores of metals
  
History
  
  
Who Discovered
Claude François Geoffroy
  
Friedrich Oskar Giesel
  
Discovery
In 1753
  
In 1902
  
Abundance
  
  
Abundance In Universe
Not Available
  
Abundance In Sun
~0.000006 %
  
14
~-9999 %
  
Abundance In Meteorites
Not Available
  
Abundance In Earth's Crust
Not Available
  
Abundance In Oceans
Not Available
  
Uses & Benefits
- 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.
  
- Actinium metal has a great source of alpha rays but it is hardly used outside research purpose.
  
Industrial Uses
Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
  
NA
  
Medical Uses
Pharmaceutical Industry
  
NA
  
Other Uses
Alloys
  
Alloys, Nuclear Research, Research Purposes
  
Biological Properties
  
  
Toxicity
Low Toxic
  
Toxic
  
Present in Human Body
Yes
  
No
  
In Blood
0.02 Blood/mg dm-3
  
20
0.00 Blood/mg dm-3
  
37
In Bone
0.20 p.p.m.
  
22
0.00 p.p.m.
  
36
Melting Point
1,227.00 °C
  
38
Boiling Point
1,560.00 °C
  
99+
3,200.00 °C
  
26
Appearance
  
  
Physical State
Solid
  
Solid
  
Color
Silver
  
Silvery White
  
Luster
Metallic
  
NA
  
Hardness
  
  
Mohs Hardness
Not Available
  
Brinell Hardness
Not Available
  
Speed of Sound
1,790.00 m/s
  
99+
Not Available
  
Optical Properties
  
  
Allotropes
No
  
No
  
α Allotropes
Not Available
  
Not Available
  
β Allotropes
Not Available
  
Not Available
  
γ Allotropes
Not Available
  
Not Available
  
Chemical Formula
Bi
  
Ac
  
Isotopes
  
  
Electronegativity
  
  
Pauling Electronegativity
Sanderson Electronegativity
Not Available
  
Allred Rochow Electronegativity
Mulliken-Jaffe Electronegativity
Not Available
  
Allen Electronegativity
Not Available
  
Electropositivity
  
  
Pauling Electropositivity
Ionization Energies
  
  
1st Energy Level
703.00 kJ/mol
  
35
499.00 kJ/mol
  
99+
2nd Energy Level
1,610.00 kJ/mol
  
33
1,170.00 kJ/mol
  
99+
3rd Energy Level
2,466.00 kJ/mol
  
99+
1,900.00 kJ/mol
  
99+
4th Energy Level
4,370.00 kJ/mol
  
28
4,700.00 kJ/mol
  
23
5th Energy Level
5,400.00 kJ/mol
  
30
Not Available
  
6th Energy Level
8,520.00 kJ/mol
  
19
Not Available
  
Electrochemical Equivalent
2.60 g/amp-hr
  
19
2.82 g/amp-hr
  
18
Electron Work Function
Not Available
  
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility
  
Ionization, Radioactive Isotopes, Radioactivity, Solubility
  
Electron Configuration
[Xe] 4f14 5d10 6s2 6p3
  
[Rn] 6d1 7s2
  
Crystal Structure
Rhombohedral (RHO)
  
Face Centered Cubic (FCC)
  
Crystal Lattice
RHO-Crystal-Structure-of-Bismuth.jpg#100
  
FCC-Crystal-Structure-of-Actinium.jpg#100
  
Atom
  
  
Radius of an Atom
  
  
Covalent Radius
Not Available
  
Van der Waals Radius
Not Available
  
Atomic Volume
21.30 cm3/mol
  
14
22.54 cm3/mol
  
11
Adjacent Atomic Numbers
  
  
Valence Electron Potential
41.90 (-eV)
  
99+
38.60 (-eV)
  
99+
Lattice Angles
NA
  
π/2, π/2, π/2
  
Lattice C/A Ratio
Not Available
  
Not Available
  
Density
  
  
Density At Room Temperature
10.00 g/cm3
  
37
Density When Liquid (at m.p.)
10.05 g/cm3
  
18
Not Available
  
Tensile Strength
Not Available
  
Not Available
  
Viscosity
Not Available
  
Not Available
  
Vapor Pressure
  
  
Elasticity properties
  
  
Shear Modulus
Not Available
  
Bulk Modulus
Not Available
  
Young's Modulus
Not Available
  
Poisson Ratio
Not Available
  
Other Mechanical Properties
NA
  
NA
  
Magnetic Characteristics
  
  
Magnetic Ordering
Diamagnetic
  
Paramagnetic
  
Permeability
Not Available
  
Susceptibility
Not Available
  
Electrical Properties
  
  
Electrical Property
Semiconductor
  
Unknown
  
Resistivity
Not Available
  
Electrical Conductivity
0.01 10
6/cm Ω
  
99+
Not Available
  
Electron Affinity
91.20 kJ/mol
  
11
Not Available
  
Specific Heat
0.12 J/(kg K)
  
40
0.12 J/(kg K)
  
40
Molar Heat Capacity
25.52 J/mol·K
  
37
27.20 J/mol·K
  
18
Thermal Conductivity
7.97 W/m·K
  
99+
12.00 W/m·K
  
99+
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
13.40 µm/(m·K)
  
28
Not Available
  
Enthalpy
  
  
Enthalpy of Vaporization
151.00 kJ/mol
  
99+
Not Available
  
Enthalpy of Fusion
10.90 kJ/mol
  
33
Not Available
  
Enthalpy of Atomization
207.10 kJ/mol
  
99+
301.00 kJ/mol
  
36
Standard Molar Entropy
56.70 J/mol.K
  
24
56.50 J/mol.K
  
25