a) J.J. Thomson who discovered the electron in 1897, proposed the plum pudding model of the atom in 1904 before the discovery of the atomic nucleus in order to include the electron in the atomic model.
b) In Thomson’s model, the atom is composed of electron surrounded by a soup of positive charge to balance the electron’s negative charge like negatively charged “plums” surrounded by positively charged pudding.
c) The 1904 Thomas was disproved by Huns Gerger and Earnest Massdon’s …show more content…
The things that we experience are all products ie., discrete or made up of parts. They are therefore non-external. Non external has no meaning apart from external. Earth, water, fire and air are both eternal and non-eternal. While ākāśa is external only. The compounds which are produced are non-eternal, while the component particles which are not produced are eternal.The invisible eternal atoms are incapable of division in to parts then all material things would be the products of an equally endless number of constituent endless numbers of constituent parts, so that differences in the dimensions of things cannot be accounted for. If matter were infinitely divisible, then are should have to reduce it to nothing and admit the paradoxical position that magnitudes, bodies out of the bodyless. The change in the volumes of bodies are determined by the added and withdrawal of the atoms composing them. Infinite greatness and infinite smallness are not realized magnitudes. They are the upper and the lower limits, and what we know is intermediate between the two. By a continual addition we reach the infinitely great and by a continual splitting up we reach the infinitely small. The atoms are the material cause of effects. Though they are supersensible, they can be classified, though not from the stand point of size, shape, weight and density. The qualities which they produce in the different dorm of sensible things help us in the classification of atoms. If we leave aside the general properties of sensible things such as impenetrability which are perceived by more senses than one, the special qualities. Are adour, flabour luminosity, and temperature. These differ in kind and not merely in degree. It is assumed that there are flour classes of paramānus are said to produce the four senses of touch, taste, slight and smell, and this is