Multiple Choice: Choose the letter of the best answer. Write the chosen letter on a separate sheet of paper. 1. What is the model developed after J.J. Thompson discovered electrons, a particle smaller than an atom? It shows electrons floating freely in a positive region. A. Rutherford model C. Plum Pudding model B. Democritus's model D. Quantum Mechanical model Hotom 2​
The “plum pudding” model. Following the discovery of the electron, J.J. Thomson developed what became known as the “plum pudding” model in 1904.
