history of the atom By Ms. Jojo 280 aristotle 300 democritus 300 Democritus and atomos 316 Aristotle and the 5 elements 1760 john dalton 1800 John Dalton and the indivisible atom 1890 JJ Thomson Discovery of the electron using the Cathode ray experiment. Plum pudding model 1899 jj thomson 1920 Ernst Rutherford Discovery of the positively charged nucleus and the Nuclear model 1920 rutherford- discovery of the electron
Discovery of the electron using the Cathode ray experiment. Plum pudding model