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  1. Yttrium - Wikipedia

  2. Yttrium - Element information, properties and uses | Periodic Table

  3. Yttrium Facts - Chemical & Physical Properties - ThoughtCo

  4. Yttrium | History, Uses, Facts, Physical & Chemical Characteristics

  5. Yttrium Facts – Element Symbol Y or Number 39 - Science Notes …

  6. Yttrium Facts, Symbol, Discovery, Properties, Uses, Pictures

  7. WebElements Periodic Table » Yttrium » the essentials

  8. Yttrium | Chemical Element, Uses in Electronics, & Medicine

  9. Yttrium - Periodic Table

  10. Yttrium (Y) - The Chemical Elements