Understanding the Valency of Sulphur: Positive or Negative?

Explore the valency of sulphur, its positive and negative states in compounds like sulfate and hydrogen sulfide.

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Sulphur can exhibit a valency of both positive and negative values, depending on the compound. In SO4 2- (sulfate), it has a valency of +6, while in H2S (hydrogen sulfide), it shows a valency of -2.

FAQs & Answers

  1. What does valency mean in chemistry? Valency refers to the combining capacity of an element, indicating how many bonds it can form with other atoms.
  2. Why does sulphur have both positive and negative valency? Sulphur exhibits both positive and negative valencies based on the compounds it forms, such as +6 in sulfate and -2 in hydrogen sulfide.
  3. What are some examples of sulphur compounds? Common sulphur compounds include sulfate (SO4 2-) and hydrogen sulfide (H2S), each showcasing different valencies.
  4. How is the valency of sulphur determined? The valency of sulphur is determined by its electron configuration and the number of bonds it forms with other elements in various compounds.