Which model of the atom was proposed as a result of J.J. Thomson's cathode ray experiments?

• A. Plum pudding model
• B. Bohr model
• C. Rutherford model
• D. Quantum mechanical model

Answer: (A)

Verified step by step guidance

1. Recall that J.J. Thomson conducted cathode ray tube experiments which led to the discovery of the electron as a negatively charged particle within the atom.
2. Understand that Thomson's findings suggested atoms were not indivisible, but contained smaller charged components, which contradicted earlier atomic models.
3. Recognize that to explain the presence of electrons, Thomson proposed a model where electrons were embedded within a positively charged 'soup' or 'cloud' to balance the charge.
4. This conceptual model is known as the Plum Pudding Model, where electrons are like 'plums' scattered inside a positively charged 'pudding'.
5. Note that other models like the Bohr model, Rutherford model, and Quantum mechanical model were developed later based on different experiments and evidence.