Ratharphod in 1911 performed a sketching experiment in which bombarded thin wall of metals like gold, silver, platinum or copper with a beam of fast moving alphaparticles. The source of alphaparticle was a radio-active substance placed in a block of lead, silits where used to get fine beam. Observation of Ratharphod's sketching experiment, most of the fast moving alphaparticles passed straight through the gold foil. Some of the alphaparticles were deflected by the foil by a small angle and some get deflected in same path by large angle. Conclusion of Ratharphod's sketching experiment, most of the space inside the atom is impiti. There is a concentration of positive charge in the atom, like charge repell, so the positive alphaparticle was being repelled by positive charges. There is dense particle at the center of an atom. The major limitation of Ratharphod's model of atom is that it does not explain the stability of the atom. As we know, when charge body moves in circular motion, they emit radiation and lose energy. Continuous loss of energy by revolving electron, it may collide with nucleus or that get collapsed in nucleus. It did not explain the arrangement of an electron inside the atom.