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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​