On the basis of Thomson’s model of an atom, explain how the atom is neutral as a whole.

Explanation

According to Thomson's model, an atom consists of a sphere (or ball) of positive charge with negatively charged electrons embedded in it (like the seeds in a watermelon). The total negative charge of electrons is equal to the total positive charge of the sphere. These equal and opposite charges balance each other due to which an atom becomes electrically neutral as a whole.