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.
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.