no good at science....lol
2006-11-13 11:00:32 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Other - Science
(1911) Ernest Rutherford performed a remarkable experiment in which Hans Geiger and Ernest Marsden under his supervision fired alpha particles (helium nuclei) at a thin film of gold foil. The plum pudding model predicted that the alpha particles should come out of the foil with their trajectories being at most slightly bent. He was shocked to discover that a few particles were scattered through large angles, even completely backwards in some cases. The discovery led to the Rutherford model of the atom, in which the atom has a very small, very dense nucleus consisting of heavy positively charged particles with embedded electrons in order to balance out the charge. As an example, in this model nitrogen-14 consisted of a nucleus with 14 protons and 7 electrons, and the nucleus was surrounded by 7 more orbiting electrons.
2006-11-13 11:06:27 · answer #1 · answered by DanE 7 · 1⤊ 0⤋
because of the fact he previously theory that atoms have been analogous to : a cake with plums studded on the floor the place the cake represents the nucleus (useful) and plums the electrons (unfavourable). This grew to become into yet another scientist, J.J Thomsons sort of the atom at that element. yet while the atom is 'lined' with electrons, it is hassle-free to assume maximum alpha to be attracted and pass interior the direction of the foil or be deviated somewhat (angular collision) even nonetheless what grew to become into 'brilliant' grew to become into that some bounced decrease back in simple terms approximately on the comparable axis of projection. This grew to become into least estimated. consequently Mr Ernest Rutherford pronounced that relatively some the atom is sparkling (on the grounds that majority of alpha debris exceeded directly interior the direction of the gold foil) aside from a area of severe useful cost density (which led to alpha debris to bounce decrease back) and that electrons orbit around the nucleus (certainly electrons do no longer orbit purely yet this is extra progressed physics). it incredibly is our cutting-edge sort of the atom. i'm hoping this cleared your doubts.
2016-12-17 09:34:39 · answer #2 · answered by ? 3 · 0⤊ 0⤋
long time ago Sir Lord Nucleus
2006-11-13 11:04:56 · answer #3 · answered by Anonymous · 0⤊ 1⤋
Rutherford with his gold foil experiment
2006-11-13 11:01:35 · answer #4 · answered by gordon_benbow 4 · 1⤊ 0⤋