Europium, a Lanthanide Traditional Cache

This cache has been archived.

GeoCrater: I am regretfully archiving this cache since there's been no response from nor action by the cache owner within the time frame requested in the last reviewer note.

GeoCrater
Geocaching.com Community Volunteer Reviewer

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Hidden : 2/2/2013
Difficulty:
1.5 out of 5
Terrain:
1.5 out of 5

Size: Size: other (other)

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Geocache Description:

My 63th hide. An easy P&G.

Europium is a chemical element with the symbol Eu and atomic number 63. It is named after the continent of Europe. It is a moderately hard, silvery metal which readily oxidizes in air and water. Being a typical member of the lanthanide series, europium usually assumes the oxidation state +3, but the oxidation state +2 is also common: all europium compounds with oxidation state +2 are slightly reducing. Europium has no significant biological role and is relatively non-toxic compared to other heavy metals. Most applications of europium exploit the phosphorescence of europium compounds.

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