Give a brief account of Thomson model of-atom. What are its limitations ?

Explanation

Thomson's model of atom :
1) According to Thomson's model, every atom consists of a positively charged sphere of radius of the order of `10^(-10)` m in which entire mass and positive charge of the atom are uniformly distributed.
2) Inside this sphere, the ,electrons are embedded iike seeds in a watermelon 'or like plums in a pudding.
3) The negative charge of electrons is equal to the positive charge of the atom. Thus atom is electrically neutral.
Limitations :
1) It could not explain the origin of spectral series of hydrogen and other atoms, observed experimentally.
2) It coulp not explain large angle scattering of `alpha`-particles from thin metal foils, as observed by Rutherford.