In the Thomson’s model of atom, which statements are correct

In the Thomson’s model of atom, which of the following statements are correct?

  1. the mass of the atom is assumed to be uniformly distributed over the atom
  2. the positive charge is assumed to be uniformly distributed over the atom
  3. the electrons are uniformly distributed in the positively charged sphere
  4. the electrons attract each other to stabilise the atom

Select the correct option:

  1. (i), (ii) and (iii)
  2. (i) and (iii)
  3. (i) and (iv)
  4. (i), (iii) and (iv)

Answer

According to Thomson's 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.

The correct option is A.