Group Number
Not Available
Element Family
Lanthanide
Transition Metal
Space Group Name
P63/mmc
R_ 3m
Interesting Facts
- At times Terbium metal acts same as Calcium.
- Terbium metal closely similar to Lanthanum metal.
- At room temperature mercury is found in a liquid state.
- A coin of pound or rupees floats in mercury.
- Because of its low melting point and boiling point it is used in thermometers.
Sources
Found in Minerals, Found with Other Rare Earth Metals, Mining, Ores of Minerals
Mining, Ores of Minerals
Who Discovered
Carl Gustaf Mosander
Ancient Chinese and Indians
Discovery
In 1842
Before 2000 BCE
Abundance In Universe
Not Available
Abundance In Sun
~-9999 %
Abundance In Meteorites
Not Available
Abundance In Earth's Crust
Abundance In Oceans
Not Available
Uses & Benefits
- Terbium salts are used in optical devices like laser devices.
-
Terbium’s alloy lengthens and shortens the magnetic field and this effect forms loudspeaker.
- It is a liquid metal at room temperature, but it is a toxic heavy metal and hence many uses of mercury are under review or phased out.
- It is manly used as a catalysts in chemical industry.
Industrial Uses
Electronic Industry
Electrical Industry, Electronic Industry
Medical Uses
NA
Dentistry
Other Uses
Alloys
Alloys, Mirror Manufacturing, Pharmaceutical Industry
Toxicity
Low Toxic
Highly Toxic
Present in Human Body
No
Yes
Melting Point
Not Available
Physical State
Solid
Liquid
Color
Silvery White
Silver
Brinell Hardness
Not Available
Vickers Hardness
Not Available
Refractive Index
Not Available
Reflectivity
Not Available
α Allotropes
Not Available
Not Available
β Allotropes
Not Available
Not Available
γ Allotropes
Not Available
Not Available
Pauling Electronegativity
Not Available
Sanderson Electronegativity
Not Available
Allred Rochow Electronegativity
Mulliken-Jaffe Electronegativity
Not Available
Allen Electronegativity
Not Available
Pauling Electropositivity
Not Available
4th Energy Level
Not Available
Electrochemical Equivalent
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility
Flammability, Ionization, Solubility
Electron Configuration
[Xe] 4f9 6s2
[Xe] 4f14 5d10 6s2
Crystal Structure
Hexagonal Close Packed (HCP)
Rhombohedral (RHO)
Crystal Lattice
HCP-Crystal-Structure-of-Terbium.jpg#100
RHO-Crystal-Structure-of-Mercury.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.)
Not Available
Tensile Strength
Not Available
Vapor Pressure at 1000 K
Not Available
Vapor Pressure at 2000 K
Not Available
Shear Modulus
Not Available
Bulk Modulus
Not Available
Young's Modulus
Not Available
Poisson Ratio
Not Available
Other Mechanical Properties
Ductile, Malleable
NA
Magnetic Ordering
Paramagnetic
Diamagnetic
Electrical Property
Conductor
Conductor
Critical Temperature
Not Available