Group Number
Not Available
Element Family
Lanthanide
Lanthanide
Space Group Name
P63/mmc
P63/mmc
Interesting Facts
- Thulium metal can resist corrosion due to dry air .
- Only Tm-169 isotope of Thulium metal occur naturally.
- Neodymium is not found free in nature, hence it is not a native metal.
- Neodymium metal found in minerals like Monazite and Bastnaesite.
Sources
Found in Minerals, Mining, Ores of Minerals
Found in Minerals, Mining
Who Discovered
Per Teodor Cleve
Carl Auer von Welsbach
Discovery
In 1879
In 1885
Abundance In Earth's Crust
Uses & Benefits
- Thulium metal produces isotopes that emits X-rays. This isotope is used in X-ray machine.
-
Thulium element is also used in Surgical equipment like laser.
- Neodymium-Iron-boron alloy is used to make permanent magnets.
- It is used in microphones, Mp3 player, loudspeakers, mobile phones, etc.
Industrial Uses
NA
Aerospace Industry, Electrical Industry, Electronic Industry
Other Uses
Alloys, Nuclear Research, Research Purposes
Alloys
Toxicity
Unknown
Non Toxic
Present in Human Body
No
No
Physical State
Solid
Solid
Color
Silvery Gray
Silvery White
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
Allred Rochow Electronegativity
Pauling Electropositivity
Electrochemical Equivalent
Electron Work Function
Not Available
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility
Chemical Stability, Corrosion, Flammable, Ionization
Electron Configuration
[Xe] 4f13 6s2
[Xe] 4f4 6s2
Crystal Structure
Hexagonal Close Packed (HCP)
Double Hexagonal Close Packed (DHCP)
Crystal Lattice
HCP-Crystal-Structure-of-Thulium.jpg#100
DHCP-Crystal-Structure-of-Neodymium.jpg#100
Van der Waals 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
Not Available
Viscosity
Not Available
Not Available
Vapor Pressure at 2000 K
Not Available
Other Mechanical Properties
Ductile, Malleable
NA
Magnetic Ordering
Paramagnetic
Paramagnetic
Electrical Property
Conductor
NA
Critical Temperature
Not Available
Not Available