9th Class Science Structure of the Atom Question Bank 9th CBSE Science Structure of the Atom

  • question_answer
            An old man and a scientist were talking about a deserted house. The old man was sure that it was haunted by ghosts, but the scientist discarded the view saying no one had ever seen a ghost. The old man was annoyed and challenged the scientist about existence of atoms, sub-atomic particles which also could not be seen. Read the given passage and answer the following questions (a) Name the three sub-atomic particles and their discoverers. (b) Whose viewpoint do you support and why?

    Answer:

                       (a)      Particles                  Discoverer (i) Electron                          J J Thomson (ii) Proton                            E Goldstein (iii) Neutron                       Chadwick     (b) I support the viewpoint of scientist as he discourages superstition,


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