The events that take place in the evolution of the chemical timeline describe how our views have changed and the many discoveries that have contributed to the shift.
Joseph Proust was responsible for completing many experiments to decompose compounds and measure the mass of each element. Proust noticed a pattern and named it the Law of Definite Proportions. And compounds are pure substances that contain two or more elements together in specific proportions
Around the 6th century, Western philosophy began. Philosophers were "thinkers" and thought about matter and only gathered information from what they saw.
Alchemists were a mix of philosophers, mystics, and pharmacists. They believed that there were only four elements and wrote of their discoveries in secret code. They believed that metals could be turned into gold as well. Alchemists are responsible for the method of distillation, which is still used today.
Sir Francis Bacon
Sir Francis Bacon was responsible for pioneering experimentation to gain knowledge of the real world. He also argued that society should study experimental results rather than only practicing observation
4th Century BCE
Robert Boyle expressed his concerns toward the "four element" theory and some aspects of the practice of alchemy. He then published a book discussing this inquiry. Boyle also discovered that elements can be combined to create compounds and shared his findings. Although Boyle did not specify which he believed were compounds or elements, society accepted his theory. This helped to create the basis of chemistry
Antoine Lavoisier identified elements as pure substances and described them as substances that cannot be broken down into more simple substances. He also identified 23 pure substances as elements
Alessandro Volta had invented the "voltaic pile", which is now modernly considered a battery. The voltaic pile did not work as well as our current batteries, but it was a reliable supply of electricity. Scientists benefited from this new tool and began using it for many tests. They first passed the electric current though water and observed that the water level lowered and that hydrogen and oxygen gases were produced. The scientists preforming the experiment speculated that the water decomposed into hydrogen and oxygen
Humphrey Davy investigated to see if other substances than water could be decomposed by electrical currents. He first discovered that he had to begin with a liquid mineral or a solution of a material. After doing so, Davy successfully isolated potassium, sodium, magnesium, calcium, strontium, and barium with the years of 1806 to 1807, that's around two years! Davy's assistant Michael Faraday coined the term "electrolysis" for the method.
Compounds & Elements
TO BE CONTINUED...