Samarium - Wikipedia 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
Samarium | Rare Earth Element, Uses in Magnets Alloys | Britannica samarium (Sm), chemical element, a rare-earth metal of the lanthanide series of the periodic table Samarium is a moderately soft metal, silvery white in colour It is relatively stable in air, slowly oxidizing to Sm 2 O 3
What is Samarium and why is the US concerned about it? Samarium, a silvery metal belonging to the lanthanide group, plays a pivotal role in the production of samarium-cobalt magnets— components prized for their high heat resistance and stability
Samarium Facts, Symbol, Discovery, Properties, Uses Samarium (pronunciation seh-MER-ee-em [2]), represented by the chemical symbol Sm [1], is a bright, fairly hard lanthanide element belonging to the family of rare earth metals [1, 3] It has seven known natural isotopes with mass numbers 144, 147, 148, 149, 150, 152 and 154
Samarium and Defense Supply Chains: Why a “Minor” Rare Earth Carries . . . The real vulnerability is processing capacity, not geology—until the West builds scaled separation, alloy manufacturing, and defense-qualified supply chains, samarium remains a single point of failure in advanced weapons systems