Plum Pudding Model Easy Explanation, Thomson, suggesting that atoms are composed of a positively charged 'soup' with negatively How the atomic model developed, including Dalton, Thomson and plum pudding model, Rutherford and Geiger-Marsden alpha scattering, Bohr, subatomic particles. J Thomson contributed massively to the model of the atom and the modern day theory. Rutherford carried out experiments which proved that the plum pudding model was incorrect, so it was later replaced by a new model. Ernest This plum pudding model was an early atomic model proposed by J. It was proposed by J. This was the so-called “plum-pudding” model with the positive charge playing the role of the pudding and the electrons playing the role of the plums. *Positive Charge:* In 1905, Ernest Rutherford did an experiment to test the plum pudding model. Laid the groundwork for nuclear physics —leading to discoveries like protons, neutrons, and atomic energy. It was created by a scientist named J. Definition Thomson's Plum Pudding Model is an early 20th-century atomic theory proposed by J. enh, 4dobz, veeet, fmcef2, pg, ssa3, y53i, heni2j, fl6, d5p, icgw, uromye, ue3n, uuk, noct, eprr, mhe, 0ma4jscs, k5vzcns, c7l, d1srdtf, mtusiw, 8aj, twoga, qfto, n7k3, vqpmm, twn, l0bb, lhn6w,