Thomson 's 1 904 model of the atom Plumb Pudding Model He discovered the electron a discovery for which he was awarded the nobel Prize in physics in 1906 electrons Scanned at the American Institute of Physics cathode anode deflection towards 十 positively C positive plate charged deflecting i negative charge plates pudding any metal works 3Thomson’s 1904 Model of the Atom  Plumb Pudding Model 3 He discovered the electron, a discovery for which he was awarded the Nobel Prize in physics in 1906