Unstable by Muhhamed Faizon5/9/2023 ![]() Though classified as a rare-earth element, samarium is the 40th most abundant element in Earth's crust and more common than metals such as tin. The mineral itself was named after a Russian mine official, Colonel Vassili Samarsky-Bykhovets, who thus became the first person to have a chemical element named after him, albeit indirectly. Compounds of samarium(II) are also known, most notably the monoxide SmO, monochalcogenides SmS, SmSe and SmTe, as well as samarium(II) iodide.ĭiscovered in 1879 by French chemist Paul-Émile Lecoq de Boisbaudran, samarium was named after the mineral samarskite from which it was isolated. ![]() Being a typical member of the lanthanide series, samarium usually has the oxidation state +3. It is a moderately hard silvery metal that slowly oxidizes in air. ![]() Samarium is a chemical element with symbol Sm and atomic number 62. ![]()
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