What Is Valency in Chemistry? Understanding Atomic Bonding Capacity

Learn what valency means in chemistry and how atoms combine based on their outermost electrons. Simple examples included.

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Valency refers to the ability of an atom to combine with other atoms. It is determined by the number of electrons in its outermost shell. For instance, hydrogen has a valency of 1 because it can form one bond, while carbon has a valency of 4, allowing it to form four bonds.

FAQs & Answers

  1. What does valency mean in chemistry? Valency refers to the ability of an atom to bond with other atoms, determined by the number of electrons in its outermost shell.
  2. How is valency determined for an atom? Valency is determined by the number of electrons in an atom's outermost shell that can participate in forming chemical bonds.
  3. Why does hydrogen have a valency of 1? Hydrogen has one electron in its outermost shell, so it can form one covalent bond, giving it a valency of 1.
  4. What is the valency of carbon and why? Carbon has four electrons in its outer shell, allowing it to form four bonds, so its valency is 4.