Chemistry has been around for a long time. Chemistry wasn’t a huge subject back in the days because nobody knew what it was. If you asked a caveman if he knew anything about Lewis Structures, he would most likely be confused. Before Chemistry was founded, people were still very interested with elements. In fact some of our time periods are named after elements such as the Bronze Age and the Iron Age. Early humans used the metals as tools and weapons for everyday purposes but that’s about it because our technology wasn’t fully prepared. Prior to the knowledge of the many elements on this earth, life was pretty hard on earth with so little, now flash forward to the creation of a whole new generation. Antoine Lavoisier is known as the father of chemistry. In 1787 Antoine Lavoisier wrote a book called Elements of Chemistry. He put together the first complete list of elements, discovered and named oxygen and hydrogen, helped develop the metric system, and helped to reform chemical nomenclature. Prior to chemistry, there was alchemy. Alchemy was unsuccessful in explaining the nature of matter and its transformations however by doing these experiments and recording the results, alchemists set the stage for modern chemistry. The difference of these two was noticed by Robert Boyle. Alchemy and chemistry are both concerned with matter and its transformations but chemistry uses scientific methods to prove their work. Robert Boyle wrote about this in his book titled The Skeptical Chemist.
The Periodic Table is an arrangement of elements. There are 118 elements listed in the periodic table. The elements in the table are presented in order of increasing atomic number. The Periodic Table was created by Dmitri Mendeleev. He presented his periodic table of the elements based on increasing atomic weight on March 6, 1869, in a presentation to the Russian Chemical Society. In 1871, Mendeleev published an updated form of periodic table. There were some gaps in the table that were filled later on as chemists discovered additional naturally occurring elements.
John Dalton, chemist and physicist, had proposed the atomic theory. This theory stated that all elements are made up of tiny particles called atoms, all atoms of an element are identical, the atoms of dissimilar elements can be distinguished from one another by their corresponding relative weights, atoms of an element can be combined with atoms of another elements to form chemical compounds, and atoms cannot be created, broken down into smaller particles, nor destroyed in a chemical process. The development of the atomic theory had advanced greatly when chemistry became an exact science during the late 1700's. Chemists discovered that they could combine elements to form compounds only in certain fixed proportions according to mass. This was another huge discovery and there would be more to come.
In 1913 Niels Bohr came up with the Bohrs Model which at that time was the biggest discoveries. The Bohr model was...