![]() ![]() Electrons orbit the nucleus in circular paths.The nucleus contains most of the atom's mass.Atoms have a dense, positively charged nucleus at the center.From these observations, he proposed the following attributes: Rutherford observed that most of the alpha particles passed straight through the foil, while a small fraction were deflected at large angles, and a few even bounced back. It was based on his famous gold foil experiment, where he bombarded a thin gold foil with alpha particles. Rutherford's atomic theory, also known as the planetary model, was proposed in 1911. In this article, we will compare the attributes of these two theories and explore their contributions to the development of atomic theory. Rutherford's atomic theory and Thomson's atomic theory were proposed during different periods and provided different insights into the nature of atoms. Two prominent figures in this field are Ernest Rutherford and J.J. Copy This URL ComparisonĪtomic theory has evolved significantly over the years, with various scientists contributing to our understanding of the structure and behavior of atoms. While Thomson's theory laid the foundation for understanding the presence of electrons, Rutherford's theory revolutionized our understanding of the atom's structure by introducing the concept of a nucleus. Rutherford's experiments with alpha particles led him to discover the existence of the nucleus and the mostly empty space within the atom. On the other hand, Rutherford's theory, known as the "planetary" model, proposed that the atom had a small, dense, positively charged nucleus at its center, with electrons orbiting around it. This model suggested that the atom was a uniform, positively charged sphere. Thomson's theory, also known as the "plum pudding" model, proposed that atoms were composed of a positively charged "pudding" with negatively charged electrons embedded within it. Rutherford's Atomic Theory and Thomson's Atomic Theory were both significant contributions to our understanding of the atom, but they differed in their explanations of its structure. Thomson Atomic Theory What's the Difference? ![]()
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