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12-22-2012, 05:22 PM
Help JJJ, Sprite.
njdevsfn95's Avatar
Join Date: Jul 2006
Country: United States
Posts: 30,964
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The "rare earth" elements arent rare.

The placement of the lanthanides and actinides series on the bottom of the periodic table has nothing to do with chemistry but makes it more compact to save paper.

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