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  1. Sulfur - Wikipedia

  2. Sulfur | Definition, Element, Symbol, Uses, & Facts | Britannica

  3. Sulfur - Element information, properties and uses | Periodic Table

  4. Sulfur Facts - Periodic Table of the Elements - ThoughtCo

  5. Sulfur (S) - Periodic Table

  6. Sulfur - Periodic Table

  7. Sulfur | S (Element) - PubChem

  8. Element: Sulfur - Periodic table

  9. Sulfur (S) - Periodic Table

  10. Chemical Symbol for Sulfur – S - Periodic Table of Elements