Chemistry topic one - history of the atom



History of the atom 

John Dalton - 1803

ideas :

discovered atoms, which he imagined as tiny spheres that could not be divided.

J.J Thompson - 1897


Discovered electrons

Plum pudding model, ball of positive charge with negative electrons embedded in it 

Rutherford - 1909

experiment :
In the experiment, positively charged alpha particles were fired at a thin gold foil. Most alpha particles went straight through the foil. But a few were


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