Element Family
Post-Transition
Post-Transition
Space Group Name
P63/mmc
C12/m1
Interesting Facts
- Compounds of Thallium metal are highly Toxic.
- Thallium metal is being suspected as a human carcinogen.
- 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
Found As a By-product, Ores of metals, Ores of Minerals
Found in Minerals, Mining, Ores of Minerals
Who Discovered
William Crookes
Claude François Geoffroy
Discovery
In 1861
In 1753
Abundance In Earth's Crust
Uses & Benefits
- Thallium is a toxic metal and hence it has limited uses. Thallium metal is mostly used for producing photoelectric cells.
- In thermometer’s mercury alloy has 8% of thallium, as it has a melting point lower than 20°C.
- 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
Chemical Industry
Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
Medical Uses
Medical Research
Pharmaceutical Industry
Toxicity
Highly Toxic
Low Toxic
Present in Human Body
Yes
Yes
Physical State
Solid
Solid
Color
Silvery White
Silver
α Allotropes
Not Available
Not Available
β Allotropes
Not Available
Not Available
γ Allotropes
Not Available
Not Available
Pauling Electronegativity
Sanderson Electronegativity
Allred Rochow Electronegativity
Mulliken-Jaffe Electronegativity
Pauling Electropositivity
4th Energy Level
Not Available
5th Energy Level
Not Available
6th Energy Level
Not Available
Electrochemical Equivalent
Other Chemical Properties
Corrosion, Ionization, Radioactive Isotopes, Solubility
Ionization, Radioactive Isotopes, Solubility
Electron Configuration
[Xe] 4f14 5d10 6s2 6p1
[Xe] 4f14 5d10 6s2 6p3
Crystal Structure
Hexagonal Close Packed (HCP)
Rhombohedral (RHO)
Crystal Lattice
BCC-Crystal-Structure-.jpg#100
RHO-Crystal-Structure-of-Bismuth.jpg#100
Valence Electron Potential
Lattice Angles
π/2, π/2, 2 π/3
NA
Lattice C/A Ratio
Not Available
Density At Room Temperature
Density When Liquid (at m.p.)
Tensile Strength
Not Available
Not Available
Viscosity
Not Available
Not Available
Vapor Pressure at 1000 K
Not Available
Other Mechanical Properties
Ductile, Sectile
NA
Magnetic Ordering
Diamagnetic
Diamagnetic
Permeability
Not Available
Susceptibility
Not Available
Electrical Property
Conductor
Semiconductor
Critical Temperature
Not Available
Not Available