Samarium

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Samarium
Name Samarium
Symbol Sm
Atomic number 62
Atomic mass 150.36 amu
Normal state Solid
Classification Metallic
Crystal structure Hexagonal
Color Silvery white; oxidises in moist air
Date of discovery 1879
Name of discoverer Paul Émile Lecoq de Boisbaudran
Name origin From the mineral samarskite.
Uses Used in carbon-arc lighting, permanent magnets, lasers, alloys, headphones and as an absorber in nuclear reactors.
Obtained from The chief ore it is found in is monazite.


Samarium is a silvery metal in the lanthanoid group. It is one of the rare earth elements.[1]

It is named after the mineral samarskite which, in turn, was named after Vasili Samarsky-Bykhovets, the Chief of Staff (Colonel) of the Russian Corps of Mining Engineers from 1845–1861, thus making samarium the first chemical element to be named after a living person.

References