Essay about The Atomic Theory Has Revolutionized The Field Of Science

1526 Words Jan 20th, 2015 7 Pages
The atomic theory has revolutionized the field of science. The ideas behind it began in the times of Ancient Greece. From there the ideas were put under trial, proven, disproven, and formed into what we now recognize as the atomic theory. Since the beginning of time, people believed that matter was made from a few fundamental building blocks. In ancient times, these fundamental elements were thought of as water, fire, earth, and air. Around 400 BCE, Democritus and Leucippus developed a theory that explained the composition of everything. They said that all matter was composed of, what they called, atoms. It comes from the Greek word “atomos” which means uncuttable or indivisible. They also believed that each item was made up of its own particles. For example, a piece of iron was composed of only iron particles and clay was made up of only clay particles. This was a huge step towards the idea of the atomic theory, but surprisingly, no further advancements were made in this theory until approximately 2000 years later. In 1774 Antoine Lavoisier proposed the Law of Conservation of Mass. This states that mass cannot be created or destroyed in ordinary physical and chemical reactions. Therefore, it was believed that atoms could not be created or destroyed. In time, two additional laws were proposed. These were the Law of Definite Proportions and the Law of Multiple Proportions. Using the three laws stated above, John Dalton, an English scientist,…

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