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kendyl&chanley

eyy kendyl(:


 * i live in Vinice,Italy bbayy<3**

=Hey i'm kendyl. I'm from Honolulu, Hawaii (an. I'm very excited about working with you and being your partner. I don't care what model we do.=

Associates: Your assigned atomic model is: Rutherford
The **Rutherford model** or **planetary model** was a model of the atom devised by Ernest Rutherford. Rutherford directed the famous Geiger-Marsden experiment in (1909), which suggested to Rutherford's analysis (1911) that the Plum pudding model (of J.J. Thompson) of the atom was incorrect. Rutherford's new model for the atom, based on the experimental results, had a number of essential modern features, including a relatively high central charge concentrated into a very small volume in comparison to the rest of the atom. The nucleus was postulated as small and dense to account for the scattering of alpha particles from thin gold foil, as observed in a series of experiments performed under Rutherford's direction in 1910–11 (see [|Figure]). The diagram shows a simplified plan of his gold foil experiment. A radioactive source capable of emitting alpha particles (i.e., positively charged particles more than 7,000 times as massive as electrons) was enclosed within a protective lead shield. The radiation was focused into a narrow beam after passing through a slit in a lead screen. A thin section of gold foil was placed in front of the slit, and a screen coated with zinc sulfide to render it fluorescent served as a counter to detect alpha particles. As each alpha particle struck the fluorescent screen, it would produce a burst of light called a scintillation, which was visible through a viewing microscope attached to the back of the screen. The screen itself was movable, allowing Rutherford and his associates to determine whether or not any alpha particles were being deflected by the gold foil. Most alpha particles were observed to pass straight through the gold foil (//see// inset), which implied that atoms are composed of large amounts of open space. Some alpha particles were deflected slightly, suggesting interactions with other positively charged particles within the atom. Still other alpha particles were scattered at large angles, while a very few even bounced back toward the source. Only a positively charged and relatively heavy target particle, such as the proposed nucleus, could account for such strong repulsion. The negative electrons that balanced electrically the positive nuclear charge were regarded as traveling in circular orbits about the nucleus. The electrostatic force of attraction between electrons and nucleus was likened to the gravitational force of attraction between the revolving planets and the Sun. Most of this planetary atom was open space and offered no resistance to the passage of the alpha particles. The Rutherford model, based wholly on classical physics, was superseded in a few years by the **Bohr atomic model**, which incorporated some early quantum theory.

That is some interesting information I found. I hope you can help me find some information too!

I think we should get coat hangers for the outside rings and put stire foam balls on them. for the middle we can glue stirefoam balls together and color them and glue them to a string.hang the balls from the coat hangers. them we can label them nucleus and electrons.

This is our model that we have to make.

Kendyl Vest