Posted by sam on Friday, November 2, 2007 at 10:34pm.
Bohr is right
An atom is made of positively charged pudding like material through whic hnegatively cahrged particels are scattered
I put thompson -
now I am not sure after reading winnepedia maybe rutherford??
The J.J. Thomson (note the spelling) model was the pudding model. Rutherford was a student of Thomson and discovered alpha particles. In experiemnts after graduating, Rutherford noted that his alpha particle scattering experiments could not be explained by the Thomson model; therefore, he proposed the idea that the mass of the atom was at the center, the center was positively charged, and electrons were somewhere outside the nucleus. (He didn't know about neutrons--they were not discovered until later).
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