This result was so unexpected that Rutherford famously likened it to firing a cannonball at a piece of tissue paper and having it bounce back. Because the alpha particles occasionally rebounded backward, he deduced that they had collided with a concentration of mass and charge far greater than anything previously imagined.
Simply Understanding Rutherford's Atomic Model With the Gold Foil Experiment
He concluded that the only explanation was the presence of a dense, positively charged nucleus at the center of the atom. According to the plum pudding model, the alpha particles should have passed through the foil with only minor deflections, as the positive charge was thought to be too diffuse to cause significant scattering.
The model successfully explained the results of the gold foil experiment and offered a new perspective on atomic stability and structure. The entire atom is electrically neutral because the total positive charge of the nucleus is balanced by the total negative charge of the electrons.
Rutherford Model Explained Simply For Students
The electrons, being much lighter, would orbit this central nucleus at a distance, much like planets orbiting the sun. At the turn of the 20th century, J.
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