What makes different objects we see around us? What is giving them different colors, shapes, smells and tastes? Why would a substance is hard, another soft and a more fluid? Read so far as we can answer: “the difference between atoms is what makes these things possible.” But this answer is not enough, because if that were the only reason there should be thousands of millions of atoms with different properties. Bypasses the answer there. Many materials that are different and have different properties, however contain the same atoms. The answer to these questions is to be found on the side of the way atoms are bonded to form molecules.
In the way of the constitution of matter and after the formation of the atom, the next step is occupied by molecules. These are the smallest units in determining the chemical properties of matter. Although tiny, they can be composed of two atoms or more, some with thousands of them. They remain together within the molecules through chemical bonds established by the force of electromagnetic attraction. That is, bonds are formed on the basis of the electrical charges of atoms, which are determined by the electrons in their outermost orbital. The different combinations of molecules give rise to the diversity of matter we see around us. Hence the importance of chemical bonds.
