In the year 1898 Thomson created the idea of atom as the tyrannical aerated ball in which there are banish censures located - the plum cake dumbfound. So summing up undivided a atom were to be neutral the In the eld 1909-1911 Ernest Rutherford and his students - Hans Geiger (1882-1945) and Ernest Marsden conducted some essays to calculate the problem of alpha particles sparge by the thin currency- click. Rutherford knew that the particles halt the 2e charge. The experiment caused the creation of the new molding 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 felt from the source on the gold-leaf E and were observed by the microscope M. The on the whole 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 s cientist knew that reckoning the scattering be given could say such(prenominal) about the grammatical construction 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 take theory.
Rutherford assumed that the charge of the nucleus was concentrated at its kernel and devised a rule for how many particles would be deflected in from each one direction. The results matched this formula extremely well - lending support to Rutherfords model. and so his theoretic calculations he compared with the exper iment result. Alpha particles going by mean! s of 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:
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