Rutherford's atomic model
in 2454, Lord Ernest Rutherford, Hans Geiger and Ernest Fletcher was conducted by a joint British. In the experiment, Rutherford used alpha particles to bombard a thin sheet of gold and illuminated the scene. Which is impregnated with zinc sulfide. As the alpha particles To determine if alpha particles rushing toward any. The results showed that the alpha particles travel in a straight line through the gold pads. Some particles are diverted from the original route. And some very small particles, which are reflected back by the same route. When interacting with Gold Sheet You know, because the alpha particles hit the scene. It will glow up Rutherford's experiments can not be described as plum pudding model. Because the plum pudding model of the atom of gold to a proton. The atoms and electrons scattered So if the plum pudding model properly. When fired alpha particles, which are positively charged atoms into gold. Alpha particles are pushed to the protons, which are positively charged as well. And should be diverted from the line a little. To explain the experimental results, Rutherford proposed a new atomic model: the atomic nucleus consists of protons, which together make up the middle. The nucleus is very small but very massive and positively charged. The electrons, which are negatively charged And a mass sprint around the nucleus was expanded.
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