Exam (elaborations)
Changing atomic model: Atomic structure and the periodic table: Chemistry: GCSE (9:1)
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Ancient greek model of the atom Atoms are tiny solid spheres which cannot be divided. JJ Thompson Discovered the electron and developed the "plum-pudding" model of the atom plum pudding model of the atom atoms are balls of positively charge with negative electrons embedded in it Rutherford, G...
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