Group Number
Not Available
Element Family
Lanthanide
Alkaline Earth
Space Group Name
R_ 3m
Im_ 3m
Interesting Facts
- Samarium metals helps stimulating body metabolism.
- Samarium metals was 1st observed by Jean Charles Galissard de Marignac in Dydimia in 1853.
- Barium oxidizes very easily in the air.
- All toxic compounds of Barium can easily dissolve in water.
- Barium carbonate is used to produce a Rat poison and its other compound Barium nitrate is used in fireworks to produce green color.
Sources
Found in Minerals, Mining, Ores of Minerals
Earth's crust, Found in Minerals, Mining, Ores of Minerals
Who Discovered
Lecoq de Boisbaudran
Carl Wilhelm Scheele
Discovery
In 1879
In 1772
Abundance In Earth's Crust
Abundance In Humans
Not Available
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.
- It is sued in chemical paint manufacturing and glass manufacturing.
-
Compounds of this metal are toxic; but still the barium sulfate is insoluble and given to patients suffering from digestive disorder.
Industrial Uses
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
Ammunition Industry, Automobile Industry, Electrical Industry, Electronic Industry
Other Uses
Alloys, In Nuclear Reactors
Alloys
Toxicity
Slightly Toxic
Low Toxic
Present in Human Body
Yes
Yes
Physical State
Solid
Solid
Color
Silvery White
Silvery Gray
Mohs Hardness
Not Available
Brinell Hardness
Not Available
Vickers Hardness
Not Available
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
Allen Electronegativity
Not Available
Pauling Electropositivity
4th Energy Level
Not Available
Electrochemical Equivalent
Other Chemical Properties
Ionization, Radioactive Isotopes
Ionization, Radioactive Isotopes, Radioactivity, Solubility
Electron Configuration
[Xe] 4f6 6s2
[Xe] 6s2
Crystal Structure
Rhombohedral (RHO)
Body Centered Cubic (BCC)
Crystal Lattice
RHO-Crystal-Structure-of-Samarium.jpg#100
BCC-Crystal-Structure-.jpg#100
Valence Electron Potential
Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
Lattice C/A Ratio
Not Available
Not Available
Density At Room Temperature
Density When Liquid (at m.p.)
Tensile Strength
Not Available
Not Available
Viscosity
Not Available
Not Available
Poisson Ratio
Not Available
Other Mechanical Properties
NA
NA
Magnetic Ordering
Paramagnetic
Paramagnetic
Electrical Property
Conductor
Superconductor
Critical Temperature
Not Available
Not Available