Figure 4.9 J. J. Thomson’s plum pudding model of the atom states that the atom is a uniform, positively charged sphere containing electrons. JJ汤姆森的葡萄干布丁原子模型认为原子是一个均一带正电的球体,其中嵌入电子。 Figure 4.10 Development of Modern Atomic Theory 现代原子理论的发展 Current unde...
Thomson's Contribution to Atomic Theory Lesson Summary Frequently Asked Questions What is J.J. Thomson's model of the atom called? The atomic model that Thomson initially supported was called the Plum Pudding Model. It was later supplanted by the Rutherford Model, which was more accurate. What...
J.J. Thomson discovered the electron in 1897 and led the Cavendish Laboratory into a world-class research institution. His work opened the field of subatomic physics to experimental investigation and helped unravel the inner workings of the atom. He deve
Thomson actually made three propositions: 1) each negative charge inhabiting the atom is paired with a positive charge; 2) an atom is a “soup” of uniform positive charge in which negatively charged particles encircle the center like sharks; or 3) the negatively charged particles orbit a centr...
汤姆孙模型（又称梅子布丁模型、枣糕模型、葡萄干布丁模型），是汤姆孙（J.J.Thomson）1898年提出的关于原子结构的一种假设，1903年、1907年作出了进一步的完善，认为原子是球体，带正电的物质均匀地分布于球体内，带负电的电子一颗一颗地镶嵌在球内各处的一个个同心环上，第一个环上可放5个电子，第二个环上可放...