Element Family
Post-Transition
Alkali
Space Group Name
P63/mmc
Im_ 3m
Interesting Facts
- Compounds of Thallium metal are highly Toxic.
- Thallium metal is being suspected as a human carcinogen.
Not Available
Sources
Found As a By-product, Ores of metals, Ores of Minerals
Earth's crust, Found in Minerals, Mining, Ores of Minerals
Who Discovered
William Crookes
Robert Bunsen and Gustav Kirchhoff
Discovery
In 1861
In 1860
Abundance In Earth's Crust
Abundance In Humans
Not Available
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.
- The most common use of cesium metal is as a drilling fluid. It is also used in optical glass manufacturing.
-
In vacuum tubes and radiation monitor equipment this metal is used as a catalyst promoter.
Industrial Uses
Chemical Industry
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry
Medical Uses
Medical Research
NA
Toxicity
Highly Toxic
Mildly Toxic
Present in Human Body
Yes
Yes
Physical State
Solid
Solid
Color
Silvery White
Silvery Gold
Speed of Sound
Not Available
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
Electrochemical Equivalent
Other Chemical Properties
Corrosion, Ionization, Radioactive Isotopes, Solubility
Chemical Stability, Corrosion, Ionization, Radioactive Isotopes, Solubility
Electron Configuration
[Xe] 4f14 5d10 6s2 6p1
[Xe] 6s1
Crystal Structure
Hexagonal Close Packed (HCP)
Body Centered Cubic (BCC)
Crystal Lattice
BCC-Crystal-Structure-.jpg#100
BCC-Crystal-Structure-.jpg#100
Valence Electron Potential
Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
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
Shear Modulus
Not Available
Poisson Ratio
Not Available
Other Mechanical Properties
Ductile, Sectile
Ductile
Magnetic Ordering
Diamagnetic
Paramagnetic
Electrical Property
Conductor
Semiconductor
Critical Temperature
Not Available