Group Number
Not Available
Element Family
Lanthanide
Transition Metal
Space Group Name
P63/mmc
P63/mmc
Interesting Facts
- At times Terbium metal acts same as Calcium.
- Terbium metal closely similar to Lanthanum metal.
- Naturally occurring minor elements include Cadmium.
- Cadmium is released into atmosphere to control volcanic eruption and forest fires.
- It is used for electroplating of Steel for corrosion resistance.
- It can absorb neutrons and used in nuclear reactor to control atomic fission.
Sources
Found in Minerals, Found with Other Rare Earth Metals, Mining, Ores of Minerals
Found As a By-product, Found in Minerals, Mining
Who Discovered
Carl Gustaf Mosander
Karl Samuel Leberecht Hermann and Friedrich Stromeyer
Discovery
In 1842
In 1817
Abundance In Earth's Crust
Abundance In Humans
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 has very limited uses as it is a toxic metal and it can cause birth defects, cancer, etc.
-
Almost 80% of Cadmium metal is used in Nickel cadmium Batteries and now it is getting replaced with nickel hydride.
Industrial Uses
Electronic Industry
Aerospace Industry, Ammunition Industry, Chemical Industry, Electrical Industry, Electronic Industry
Present in Human Body
No
Yes
Physical State
Solid
Solid
Color
Silvery White
Silvery Bluish-Gray
Mohs Hardness
Not Available
Vickers Hardness
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
Chemical Stability, Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
Electron Configuration
[Xe] 4f9 6s2
[Kr] 4d10 5s2
Crystal Structure
Hexagonal Close Packed (HCP)
Hexagonal Close Packed (HCP)
Crystal Lattice
HCP-Crystal-Structure-of-Terbium.jpg#100
HCP-Crystal-Structure-of-Cadmium.jpg#100
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.)
Viscosity
Not Available
Not Available
Vapor Pressure at 1000 K
Not Available
Vapor Pressure at 2000 K
Not Available
Other Mechanical Properties
Ductile, Malleable
Ductile, Malleable
Magnetic Ordering
Paramagnetic
Diamagnetic
Electrical Property
Conductor
Semiconductor
Critical Temperature
Not Available
Not Available