🔬✨ Molecules – The Building Blocks of Matter ✨🔬 Everything around us – from the air we breathe to the food we eat – is made up of molecules. A molecule is the smallest particle of a substance that retains its chemical properties. It consists of two or more atoms chemically bonded together, either of the same type or different types. ✅ Types of Molecules Elemental Molecules: Made of the same type of atoms. Example: O₂ (Oxygen), N₂ (Nitrogen). Compound Molecules: Made of different atoms. Example