| Which of the following conclusions could not be derived from Rutherford’s – α particle scattering experiment? |
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| 1 Most of the space in the atom is empty |
| 2 The radius of the atom is about 10 m while that of a nucleus is 10 m. |
| 3 Electrons move in circular path of fixed energy called orbits. |
| 4 Electrons and the nucleus are held together by electrostatic forces of attraction. |