Group Number
Not Available
Element Family
Lanthanide
Lanthanide
Space Group Name
P63/mmc
Not Available
Space Group Number
Not Available
Interesting Facts
- Neodymium is not found free in nature, hence it is not a native metal.
- Neodymium metal found in minerals like Monazite and Bastnaesite.
- Promethium metal found in Pitchblende.
- Promethium metal is highly radioactive metal.
Sources
Found in Minerals, Mining
Found in Minerals, Mining
Who Discovered
Carl Auer von Welsbach
Chien Shiung Wu, Emilio Segrè, Hans Bethe
Discovery
In 1885
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
- Neodymium-Iron-boron alloy is used to make permanent magnets.
- It is used in microphones, Mp3 player, loudspeakers, mobile phones, etc.
- 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
Aerospace Industry, Electrical Industry, Electronic Industry
NA
Toxicity
Non 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
Other Chemical Properties
Chemical Stability, Corrosion, Flammable, Ionization
Ionization, Radioactive Isotopes, Solubility
Electron Configuration
[Xe] 4f4 6s2
[Xe] 4f5 6s2
Crystal Structure
Double Hexagonal Close Packed (DHCP)
Double Hexagonal Close Packed (DHCP)
Crystal Lattice
DHCP-Crystal-Structure-of-Neodymium.jpg#100
DHCP-Crystal-Structure-of-Promethium.jpg#100
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
Vapor Pressure at 2000 K
Not Available
Other Mechanical Properties
NA
NA
Magnetic Ordering
Paramagnetic
Paramagnetic
Electrical Property
NA
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