Rutherford alpha particle scattering experiments showed …

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Rutherford's alpha particles scattering showed the three major function of the nucleus 1) Since most of the alpha particles pass straight, this show that the nucleus has lots of space in it. 2) Since some alpha particles deflects to smaller and larger angles, this shows that the nucleus is a positively charged particles. 3) Since most of the alpha particles rebounds in the same path, this shows that the nucleus is very hard and dense.

Experiment were then carried or to find out how electron proton and neutron were arranged in an atom . It was Rutherford's alpha particles scattering experiment which led to the discovery of a small positively charged particles containing all the protons and neutrons. When fast moving alpha particles are allowed to strike a very thin gold foil in vaccum it is found that 1‐most of the alpha particles pass straight through the gold foil without any deflection from their original path. 2‐a few particles are deflected through small angles and a few are deflected through large angles. 3‐a very few alpha particles completely rebound on hitting the gold foil and turn back on their path.