In the year 1898 Thomson created the idea of molecule as the haughty aerated ball in which there are prohibit censures located - the plum cake shape. So summing up full-page a atom were to be neutral the In the years 1909-1911 Ernest Rutherford and his students - Hans Geiger (1882-1945) and Ernest Marsden conducted some essays to calculate the problem of alpha particles sprinkle by the thin opulent- click. Rutherford knew that the particles halt the 2e charge. The experiment caused the creation of the new flummox of atom - the fickle model. Rutherford suggested to hit the gold-leaf (picture no. 1) with fast alpha particles from the showtime 214Po. (The beget-go R was in the lead lining F). The particles snarl from the source on the gold-leaf E and were observed by the microscope M. The alone experiment was in the metal lining A and was cover with the glaze plate P. The instrument was attached to the footing B. The gold leaf was about 5*10-7 meter thick. The scien tist knew that reckoning the scattering be given could say often about the twist of atoms of the gold-leaf. Rutherford made a theoretical analysis of angles of scattering in accordance with Thomsons supposition of atom and in accordance with his induce theory. Rutherford assumed that the charge of the nucleus was concentrated at its mall and devised a rule for how many particles would be deflected in all(prenominal) direction. The results matched this formula extremely well - lending support to Rutherfords model. thusly his theoretic calculations he compared with the experiment result. Alpha particles going by atom created in accordance with the plum cake model wouldnt be voiceless abnegated because the electric field in that atom wouldnt be strong. In the model created by Rutherford the field is much stronger near... If you want to get a full essay, order it on our website: OrderCustomPaper .com
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