Terbium
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Terbium is a chemical element; it has symbol Tb and atomic number 65. It is a silvery-white, rare earth metal that is malleable and ductile. The ninth member of the lanthanide series, terbium is a fai
Terbium 2
Terbium sulfate, Tb2(SO4)3 (top), fluoresces green under ultraviolet light (bottom)
Carl Gustaf Mosander, the scientist who discovered terbium, lanthanum and erbium
Xenotime, a mineral source of rare earth elements including terbium
Dysprosium
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Dysprosium is a chemical element; it has symbol Dy and atomic number 66. It is a rare-earth element in the lanthanide series with a metallic silver luster. Dysprosium is never found in nature as a fre
Terbium
…isotope, 159Tb, is electron capture, which results in production of gadolinium isotopes, and the primary mode after is beta minus decay, resulting in dysprosium isotopes. It is also the heaviest element where every stable nuclide has no confirmed energetically allowed decay mode, though the heaviest element…
Dy chips
Dysprosium sample
Dysprosium sulfate, Dy2(SO4)3
Xenotime