Understanding Valency vs Variable Valency: Key Differences Explained

Learn the differences between valency and variable valency in chemistry, including examples like carbon and iron.

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Valency refers to the number of bonds an atom can form with other atoms (e.g., Carbon has a valency of 4). Variable valency occurs in elements that can form multiple bonds with different valencies (e.g., Iron can have valencies of 2 and 3).

FAQs & Answers

  1. What is valency in chemistry? Valency is the measure of an atom's ability to bond with other atoms, represented by the number of bonds it can form.
  2. What is an example of variable valency? Iron is a common example of variable valency as it can exhibit valencies of 2 and 3 depending on the chemical context.
  3. How does variable valency affect chemical reactions? Variable valency allows elements to participate in multiple reactions and form various compounds due to their ability to alter bonding capacities.

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