EditorForFreedom
Wrote article
23:16
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DavidB4-bot
→top: clean up & uniformity
12:04
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Dvergne
no edit summary
04:30
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JessicaT
New page: {{Element | name=Erbium | symbol=Er | anumber=68 | amass=167.259 amu | state=Solid | class=Metallic | cstructure=Hexagonal| color=grayish-silver, tarnishes when exposed to air | date=1842 ...
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