jj thomas

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  • In 1897, J.J  Thomson propased the Plum Pudding Model 
  • I propose that...
  • In 1909, Earnest Rutherford performed the Gold Foil Experiment and suggested the following characteristics of the atom:
  • Protons = Positive Electrons = Negative 
  • Gold Foil 
  •  In 1932 James Chadwick discovered neutrons 
  • Whoah thats double the size
  • It states that atoms mostly consist of positively charged material with negatively charged particles/electrons located throughout the positive material particles/electrons located throughout the positive material
  • It consist of a small core/nucleus that contains the most mass of the atom The nucleus is made up of protons that have a positive charge Protons are surrounded by negativly charged electrons 
  • He realized that the atomic mass of most elements was double the number of protons 
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