Avogadro Constant - GCSE Chemistry Definition

The Avogadro Constant, often referred to as Avogadro's number, is a fundamental concept in chemistry that represents the number of atoms, ions, or molecules contained in one mole of any substance.

For GCSE Chemistry students, it's important to remember that this constant is approximately 6.02 ×10²³ entities per mole. This huge number allows chemists to count particles at the atomic level in a practical way and helps bridge the gap between the microscopic world of atoms and the macroscopic quantities we can measure and observe.

Understanding the Avogadro Constant is crucial for performing calculations involving the mole, a core unit in stoichiometry and chemical reactions.