We visit a disused mine in Ytterby, Sweden, where four elements on the periodic table were first discovered.
This is a re-upload of the original video, now at higher quality.
The elements named after Ytterby at Yttrium, Ytterbium, Erbium and Terbium.
More chemistry videos at http://www.periodicvideos.com/
Tagged under: Ytterby,Yttrium,Erbium,Yttrbium,Terbium
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