Rare Earth’s – Erbium

By Monday, December 13, 2010 , , , , 0

Erbium, Er, atomic number 68.

Erbium’s name came from its discovery along with Yttrium by Mosander in 1843.

Its 3+ ion will fluoresce pink in visible light. It is therefore used in lasers and in glass (to give it colour).

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