erbium

Erbium, element 68, is yet another element named after the mining village of Ytterby, Sweden. The metal was discovered and named in 1843 by Swedish chemist Carl Gustaf Mosander.1 Erbium has the chemical symbol Er.

The other elements named after Ytterby are yttrium, ytterbium, and terbium.


1Oxford English Dictionary, erbium, 2nd Edition, 1989, Oxford University Press, accessed 23 October 2009, http://dictionary.oed.com/cgi/entry/50077427.

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