Group Number
Not Available
Element Family
Lanthanide
Post-Transition
Space Group Name
R_ 3m
C12/m1
Interesting Facts
- Samarium metals helps stimulating body metabolism.
- Samarium metals was 1st observed by Jean Charles Galissard de Marignac in Dydimia in 1853.
- Bismuth metal is soluble and reacts with concentrated nitric acid.
- It oxides are used as a yellow pigment in paint. Bismuth chloride oxide BiClO gives a pearly texture to cosmetics.
Sources
Found in Minerals, Mining, Ores of Minerals
Found in Minerals, Mining, Ores of Minerals
Who Discovered
Lecoq de Boisbaudran
Claude François Geoffroy
Discovery
In 1879
In 1753
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.
- Tin and bismuth alloys have a very low melting point and hence it is used in fire detector and the fire extinguishers. It also used in electric solders and fuses.
Industrial Uses
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
Medical Uses
NA
Pharmaceutical 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
Silver
Mohs 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
5th Energy Level
Not Available
6th Energy Level
Not Available
Electrochemical Equivalent
Other Chemical Properties
Ionization, Radioactive Isotopes
Ionization, Radioactive Isotopes, Solubility
Electron Configuration
[Xe] 4f6 6s2
[Xe] 4f14 5d10 6s2 6p3
Crystal Structure
Rhombohedral (RHO)
Rhombohedral (RHO)
Crystal Lattice
RHO-Crystal-Structure-of-Samarium.jpg#100
RHO-Crystal-Structure-of-Bismuth.jpg#100
Valence Electron Potential
Lattice Angles
π/2, π/2, 2 π/3
NA
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
Vapor Pressure at 1000 K
Not Available
Other Mechanical Properties
NA
NA
Magnetic Ordering
Paramagnetic
Diamagnetic
Permeability
Not Available
Susceptibility
Not Available
Electrical Property
Conductor
Semiconductor
Critical Temperature
Not Available
Not Available