formal charges

**formal charges**

Formal charges are a bookkeeping tool used in chemistry to help determine the most stable Lewis structure for a molecule. They represent the hypothetical charge assigned to an atom in a molecule, assuming equal sharing of bonding electrons. Calculating formal charges allows chemists to identify the arrangement of electrons that leads to the most accurate depiction of molecular structure, often minimizing formal charges across the atoms involved. Understanding formal charges is essential for predicting molecular reactivity, stability, and resonance structures.