Which of the following conclusions could not be derived from Rutherford’s α -particle scattering experiment?
On the basis of Rutherford's α-particles scattering experiment, the nuclear model of atom can be concluded as:
(i) The positive charge and major portion of the mass of the atom are concentrated in an extremely small region called nucleus. Such that; if atomic radii are from 10−10 to 10−10 m then nucleus should be between 10−15 to 10−15.
(ii) The nucleus is surrounded by electrons which move around the nucleus with a very high speed in circular paths called orbits. (It resembles the solar system in which the nucleus plays the role of the sun and the electrons that of revolving planets.)
(iii) Electrons and the nucleus are held together by electrostatic forces of attraction working between them.
Hence, the concept of stationary state or orbits having fixed energy cannot be concluded from Rutherford's theory.