Molecules are held together because of the bond between electrons and the different parts of the atom such as, the neutrons and the protons.
Why is it important to learn about molecules?
All the stuff around you is made up of molecules. This includes you! You are actually made up of trillions and trillions of different types of molecules. It is important because since you have it in you, knowing about it can help you and others cure different diseases.
Doing this activity we learned that if the molecule has spare spaces, the molecule will not be ''complete'' which is what causes chemical reactions and explotions.