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Thomson proposed the plum pudding model of the atom, which had negatively-charged electrons embedded within a positively-charged "soup." This is because they are influenced by a quantized electromagnetic force that acts on them when they are close to a nucleus. But Thomson's atom model failed to explain Rutherford's -particle scattering experiment in which most of the fast-moving - particles went through the gold foil straight away. As Thomson's model guided Rutherford's experiments, Bohr's model guided Moseley's research. The Japanese scientist Hantaro Nagaoka had previously rejected Thomson's Plum Pudding model on the grounds that opposing charges could not penetrate each other, and he counter-proposed a model of the atom that resembled the planet Saturn with rings of electrons revolving around a positive center. The term atom was coined in ancient Greece and gave rise to the school of thought known as atomism. He concluded that rather than being composed of light, they were made up of negatively charged particles he called corpuscles. JJ Thomson Proposed that an atom consists . The plum pudding model of the atom states that each atom has an overall Further, the negative and positive charges were equal in number, making the . The . Oppositely charged objects attract each other. It was observed that as atoms had no charge and the electron and proton had opposite charges, the next step was to determine how these particles were arranged in the, Limitations of JJ Thomson Model of Atom (Plum Pudding Model), NCERT Solutions for Class 12 Business Studies, NCERT Solutions for Class 11 Business Studies, NCERT Solutions for Class 10 Social Science, NCERT Solutions for Class 9 Social Science, NCERT Solutions for Class 8 Social Science, CBSE Previous Year Question Papers Class 12, CBSE Previous Year Question Papers Class 10. Their professor, Ernest Rutherford, expected to find results consistent with Thomson's atomic model. 1) Rutherford's experiment showed that there is so much of empty space in an atom but according to Thomson's model there is no empty . When Rutherford shot particles through gold foil, he found that most of the particles went through. Atomic Theory Flashcards | Quizlet