Ernest+Rutherford

(Here: Include Name of Scientist as a Title) Ernest Rutherford Year Model was Proposed: 1911

Nickname for this model: Rutherford Model

Description of Model: //Include a brief description of the model proposed by this scientist. Also include a brief summary of the experiment done by the scientist to discover this model.// he postulated that atoms have their positive charge concentrated in a very small [|nucleus],[|[3]] and thereby pioneered the [|Rutherford model], or planetary, model of the [|atom], through his discovery and interpretation of [|Rutherford scattering] in his [|gold foil experiment]. // Atomic structure/structures discovered by this model: He was the first one to //prove that radioactivity involved the transmutation of one chemical element to another, and also differentiated and named alpha and beta radiation. // Picture or diagram of Model (Bonus include a video or link to a video):

How did this model build on the previous model? JJ thought that electrons were evenly embedded throughout a positively charged sphere, and the Rutherford thought that almost all the mass of an atom, and all its positive charges were concentrated in a centeral atomic nucleus surrounded by electrons. Websites / Sources Used: book, http://www.faqs.org/docs/qp/images/rfmodel.gif, http://en.wikipedia.org/wiki/Ernest_Rutherford

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