Group Number
Not Available
Not Available
Element Family
Lanthanide
Lanthanide
Space Group Name
R_ 3m
P63/mmc
Interesting Facts
- Samarium metals helps stimulating body metabolism.
- Samarium metals was 1st observed by Jean Charles Galissard de Marignac in Dydimia in 1853.
- Thulium metal can resist corrosion due to dry air .
- Only Tm-169 isotope of Thulium metal occur naturally.
Sources
Found in Minerals, Mining, Ores of Minerals
Found in Minerals, Mining, Ores of Minerals
Who Discovered
Lecoq de Boisbaudran
Per Teodor Cleve
Discovery
In 1879
In 1879
Abundance In Earth's Crust
Uses & Benefits
- Magnets of Samarium cobalt alloy are stronger than that of Iron and hence, they are used in microwave application.
- Samarium metal also used in optical lasers and infrared absorbing glasses and as a neutron absorber.
- 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.
Industrial Uses
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
NA
Other Uses
Alloys, In Nuclear Reactors
Alloys, Nuclear Research, Research Purposes
Toxicity
Slightly Toxic
Unknown
Present in Human Body
Yes
No
Physical State
Solid
Solid
Color
Silvery White
Silvery Gray
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
Ionization, Radioactive Isotopes, Solubility
Electron Configuration
[Xe] 4f6 6s2
[Xe] 4f13 6s2
Crystal Structure
Rhombohedral (RHO)
Hexagonal Close Packed (HCP)
Crystal Lattice
RHO-Crystal-Structure-of-Samarium.jpg#100
HCP-Crystal-Structure-of-Thulium.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
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
Other Mechanical Properties
NA
Ductile, Malleable
Magnetic Ordering
Paramagnetic
Paramagnetic
Electrical Property
Conductor
Conductor
Critical Temperature
Not Available
Not Available