What is Molecular Chemistry?
Molecular chemistry is the chemistry of molecules, which covers most of chemistry as a whole. Molecules are made up of various combinations of atoms, the fundamental building blocks of everything around us. There are 92 elements that occur naturally on Earth, in addition to 25 artificial elements, which are created in small quantities in particle accelerators and nuclear reactors. Out of the 92 natural elements, various arrangements of 12 make up 99% of all rocks and soil, while arrangements of 5 make up 99.97% of the atmosphere. Other elements are found in trace amounts, usually one part per million or less. The fundamentals of molecular chemistry are based on qualities of atoms called valence. Every atom is made up of little particles called electrons orbiting a nucleus made of particles called protons and neutrons. These electrons orbit is “shells” designated by the laws of physics — the first shell has a capacity of two electrons, the second has a capacity of 6, the third 10, the
