Ernest Rutherford's Experiment: Gold Foil And Shot Helium Atoms
Ernest Rutherford's experiment was that he took a piece of gold foil and shot helium atoms at it. In theory they should have rebounded off of the gold foil because scientists at that time believed that the atom was a solid sphere, but what actually happened was that most of the atoms went through the gold foil.This showed that the atom wasn't just a solid sphere like they believed but actually had a nucleus with electrons surrounding it.
In 1897, a British physicist named J. J. Thomson discovered electrons through his cathode ray experiment. Thomson made the cathode ray by firing electrical currents through glass pipes filled with low-density gas. Thomson measured the ratio as always the same, regardless of what elemental gas was in the
In 1897, a British physicist named J. J. Thomson discovered electrons through his cathode ray experiment. Thomson made the cathode ray by firing electrical currents through glass pipes filled with low-density gas. Thomson measured the ratio as always the same, regardless of what elemental gas was in the