Comparing Democritus And The Discovery Of The Atomic Model

Democritus was the first scientist to create a model of the atom as well as the first to discover that all matter is made up of indivisible particles called atoms. His belief in atoms was that atoms were small, hard particles that were all made of the same material but were different shapes and sizes. Furthermore he believed that atoms were infinite in shape, in number, always moving and capable if joining together. Unlike Democritus's belief, Aristotle's belief about the atom were completely different. For instance, he disagreed with Democritus's belief and instead believed that there was no smallest part of matter and that different substances were made of earth, fire, air, and water. Overall, atoms did not exist to Aristotle. Throughout
Also Thomson's theory couldn't explain the atomic spectrum and other properties of the atom. The Gold Foil experiment led to the discovery of the Nuclear Model and the existence of an atomic nucleus and protons. In the experiment, Rutherford directed a narrow beam of alpha particles at a thin piece if gold foil. With the prediction that the positive charges would go through the foil, Rutherford has found that every one and a while, a positive particle that was deflected bounced back because the positive charge hit a central mass of positive and was repelled. The difference between the nuclear model and the Plum Pudding model was that in the nuclear model, the electrons are not scattered evenly in the nucleus but are at great distances in the nucleus also the electrons orbit around the nucleus. In Rutherford's theory, the electrons keep emitting energy when orbiting. And the idea contained flaws because this would eventually causes loss of energy and the atoms would collapsed and it also lacked