A particle diagram is a visual representation of the arrangement and movement of particles in a chemical reaction. It shows the number and type of molecules or atoms involved, as well as their positions and interactions.
Related terms
Molecules: Molecules are small particles composed of two or more atoms held together by chemical bonds. They can be made up of the same type of atom (element) or different types.
Reactants: The substances that undergo a chemical change in a reaction.
Products: The new substances formed as a result of a chemical reaction.