1. Carbon (C): The backbone of all organic molecules.
2. Hydrogen (H): Found in most organic molecules and often bonded to carbon.
3. Oxygen (O): Important for forming functional groups and in many reactions.
4. Nitrogen (N): Found in proteins and nucleic acids.
5. Phosphorus (P): Found in nucleic acids and some lipids.
6. Sulfur (S): Found in some proteins and some lipids.
While these are the most common elements, some organic molecules may contain other elements in smaller amounts.
