Group Number
Not Available
Not Available
Element Family
Lanthanide
Lanthanide
Space Group Name
P63/mmc
Not Available
Space Group Number
Not Available
Interesting Facts
- Erbium metal is used as alloyed with Vanadium to make it softer.
- Recent studies shows that it is helpful for metabolism.
- Promethium metal found in Pitchblende.
- Promethium metal is highly radioactive metal.
Sources
Mining
Found in Minerals, Mining
Who Discovered
Carl Gustaf Mosander
Chien Shiung Wu, Emilio Segrè, Hans Bethe
Discovery
In 1842
In 1942
Abundance In Universe
Not Available
Abundance In Sun
~-9999 %
Abundance In Meteorites
Not Available
Abundance In Earth's Crust
Not Available
Abundance In Oceans
Not Available
Uses & Benefits
- It has a tendency to get tarnished in the open air, but when alloyed with elements like erbium, vanadium, its hardness levels decreases.
- Its compounds like Erbium oxide is used in safety glasses of welders and metal workers.
- It is used for research purpose. Very small amount of this metal is used in atomic batteries.
- Its radioactive decay is used for a phosphor to give off light. The light emitted is converted into electricity.
Industrial Uses
Chemical Industry
NA
Toxicity
Mildly Toxic
Non Toxic
Present in Human Body
No
No
Physical State
Solid
Solid
Color
Silvery White
Unknown
Brinell Hardness
Not Available
Vickers Hardness
Not Available
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
Not Available
Allred Rochow Electronegativity
Pauling Electropositivity
Not Available
Electrochemical Equivalent
Electron Work Function
Not Available
Not Available
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility
Ionization, Radioactive Isotopes, Solubility
Electron Configuration
[Xe] 4f12 6s2
[Xe] 4f5 6s2
Crystal Structure
Hexagonal Close Packed (HCP)
Double Hexagonal Close Packed (DHCP)
Crystal Lattice
HCP-Crystal-Structure-of-Erbium.jpg#100
DHCP-Crystal-Structure-of-Promethium.jpg#100
Van der Waals Radius
Not Available
Valence Electron Potential
Lattice Constant
Not Available
Lattice Angles
π/2, π/2, 2 π/3
Unknown
Lattice C/A Ratio
Not Available
Density At Room Temperature
Density When Liquid (at m.p.)
Not Available
Tensile Strength
Not Available
Not Available
Viscosity
Not Available
Not Available
Vapor Pressure at 1000 K
Not Available
Other Mechanical Properties
Malleable
NA
Magnetic Ordering
Paramagnetic
Paramagnetic
Electrical Property
Conductor
Conductor
Electrical Conductivity
Not Available
Molar Heat Capacity
Not Available
Critical Temperature
Not Available
Not Available
Enthalpy of Vaporization
Not Available
Standard Molar Entropy
Not Available