question_answer 41)

  In the Thomson's model of atom, which of the following statements are correct? (i) The mass of the atom is assumed to be uniformaly distributed over the atom. (ii) The positive charge is assumed to be uniformaly distributed over the atom. (iii) The electrons are uniformaly distributed in the positively charged sphere. (iv) The electrons attract each other to stabilize the atom. (a) (i), (ii) and (iii)             (b) (i) and (iii)                     (c) (i) and (iv)                     (d) (i), (iii) and (iv)

Answer:

  (a) Points (i), (ii) and (iii) are correct, According to Thomson' model of the atom, an atom consists of a sphere of positively charge with negatively charged electrons embedded in it. These negative and positive charges in an atom are equal in magnitude, due to which an atom is electrically neutral.