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  1. Beryllium - Wikipedia

  2. Beryllium | Properties, Uses, & Facts | Britannica

  3. Beryllium - Element information, properties and uses ...

  4. Beryllium (Be) - Periodic Table

  5. Beryllium | Be (Element) - PubChem

  6. Beryllium Element Facts - chemicool.com

  7. Beryllium Element | Uses, Facts, Physical & Chemical ...