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.


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

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