Neodymium

 Neodymium 
Nd
Atomic Number: 60
Atomic Weight: 144.24
Element Type: Rare Earth Metal
Crystal Structure: Hexagonal
Melting Point: 1021.0°C = 1869.8°F = 1294.15 K
Boiling Point: 3074.0°C = 5565.2°F = 3347.15 K
Critical Temp: °C = °F = K
Atomic Radius: 2.64 Å (Å = Angstrom = 10-10 m)
Covalent Radius: 1.64 Å
Electronegativity: 1.14

History

(Gr. neos, new, and didymos, twin) In 1841, Mosander, extracted from cerite a newrose-colored oxide, which he believed contained a new element. He named the elementdidymium, as it was an inseparable twin brother of lanthanum. In 1885 von Welsbachseparated didymium into two new elemental components, neodymia and praseodymia, byrepeated fractionation of ammonium didymium nitrate. While the free metal is in mischmetal, long known and used as a pyrophoric alloy for light flints, the element was notisolated in relatively pure form until 1925. Neodymium is present in misch metal to theextent of about 18%. It is present in the minerals monazite and bastnasite, which areprincipal sources of rare-earth metals.


Sources

Search

Loading



Sponsors

USC University of Southern California Dornsife College Physics and Astronomy Department McMaster University Physics and Astronomy Department

Science Quote

'I have no special talents. I am only passionately curious.'

Albert Einstein
(1879-1955)

Deal of the Day

Image of Hover Craft Kit. Click on this image for more info. Hover Craft Kit
Regular Price: $29.99
Today's Price: $12.00
Learn the science behind hover craft technology with this cool kit! Buy it now! Deal ends at midnight!

Top Selling

Here are our physics & astronomy bestsellers:
Mini Plasma Ball
Slide Making Kit
Top Secret - Spinning Top
Wood Grain Newtons Cradle
Deluxe 3D Mirascope
Solar Radiometer
Periscope
Ultimate Chemistry Set CHEM C3000
Solar Science 4M Kit
3D Magnetic Field Tube