Element Family
Post-Transition
Transition Metal
Space Group Name
P63/mmc
P63/mmc
Interesting Facts
- Compounds of Thallium metal are highly Toxic.
- Thallium metal is being suspected as a human carcinogen.
- Osmium metal does not oxidize in air unless it is heated.
- But if it heated den it forms Osmium Tetroxide, which is highly toxic.
Sources
Found As a By-product, Ores of metals, Ores of Minerals
Found As a By-product, Found in Minerals, Mining
Who Discovered
William Crookes
Smithson Tennant
Discovery
In 1861
In 1803
Abundance In Earth's Crust
Abundance In Oceans
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.
- Its has very limited uses and its alloys are very hard and are used in the manufacturing of pen tips, pivots, needles and electrical contacts.
-
It is also used as industrial catalyst to speed up the chemical reaction.
Industrial Uses
Chemical Industry
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry
Medical Uses
Medical Research
NA
Toxicity
Highly Toxic
Highly Toxic
Present in Human Body
Yes
No
Physical State
Solid
Solid
Color
Silvery White
Silvery Bluish-Gray
α Allotropes
Not Available
Not Available
β Allotropes
Not Available
Not Available
γ Allotropes
Not Available
Not Available
Pauling Electronegativity
Sanderson Electronegativity
Not Available
Allred Rochow Electronegativity
Mulliken-Jaffe Electronegativity
Not Available
Pauling Electropositivity
Electrochemical Equivalent
Other Chemical Properties
Corrosion, Ionization, Radioactive Isotopes, Solubility
Chemical Stability, Ionization, Solubility
Electron Configuration
[Xe] 4f14 5d10 6s2 6p1
[Xe] 4f14 5d6 6s2
Crystal Structure
Hexagonal Close Packed (HCP)
Hexagonal Close Packed (HCP)
Crystal Lattice
BCC-Crystal-Structure-.jpg#100
BCC-Crystal-Structure-.jpg#100
Covalent Radius
Not Available
Valence Electron Potential
Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, 2 π/3
Density At Room Temperature
Density When Liquid (at m.p.)
Tensile Strength
Not Available
Viscosity
Not Available
Not Available
Vapor Pressure at 1000 K
Not Available
Vapor Pressure at 2000 K
Not Available
Young's Modulus
Not Available
Other Mechanical Properties
Ductile, Sectile
Ductile
Magnetic Ordering
Diamagnetic
Paramagnetic
Electrical Property
Conductor
Conductor
Critical Temperature
Not Available
Not Available