3. Explain Rutherford experiment and the difference between Rutherford’s and Thomson’s model. Which model is the most believable at that time? (15)
4. Calculate the de Broglie wavelength for an electron moving at 1×107 m/s (5)
5. Describe in detail about the current atomic model. (10)
Note: You can search for more information about particular atomic models from the internet. Extra points will be awarded for answers that are not in the lecture. You MUST, however, put the reference for your answer.