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  1. Sulfate | Definition, Formula & Structure - Lesson - Study.com

  2. Oxygen & Sulphur | Overview, Properties & Examples - Study.com

  3. Sulfur | Definition, Types & Characteristics - Lesson - Study.com

  4. Chalcogen | Overview, Elements & Properties - Lesson - Study.com

  5. Nonmetal Elements | Definition, Properties & Examples

  6. P Block Elements | Overview & Properties - Lesson - Study.com

  7. Ammonia, Water & Hydrogen Sulfide | Properties & Comparison

  8. Valence Electrons | Definition, Role & Examples - Lesson - Study.com

  9. How can sulfur have 6 bonds? - Homework.Study.com

  10. Representative Elements | Definition, List & Groups - Lesson