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Handout
Chemicool

Chemicool: Yttrium

For Students 9th - 10th
Chemicool yields loads of information on the element. Everything from price to natural abundance.
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Handout
Web Elements

Web Elements Periodic Table: Yttrium

For Students 9th - 10th
At this site from Mark Winter at WebElement, you can navigate around for charts and graphs of data on Yttrium. Probably the most comprehensive of all periodic tables on the web.