Category
page 1Samarium
samarium
Samarium is a chemical element; it has symbol Sm and atomic number 62. It is a moderately hard silvery metal that slowly oxidizes in air. Being a typical member of the lanthanide series, samarium usually has the oxidation state +3. Compounds of samarium(II) are also known, most notably the monoxide SmO, monochalcogenides SmS, SmSe and SmTe, as well as samarium(II) iodide.
Paul-Émile Lecoq de Boisbaudran
French chemist (1838–1912)
Eugène-Anatole Demarçay
French chemist (1852–1903)
isotope of samarium
samarium-neodymium dating
radiometric dating method useful for determining ages of rocks and meteorites