Question

explain the Rutherford expirement. ​

Answer 1

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Rutherford Alpha Particle Scattering Experiment:

1 Most of the fast, highly charged alpha particles went whizzing straight through undeflected. This was the expected result for all of the particles if the plum pudding model was correct.

2 Some of the alpha particles were deflected back through large angles. ...

3 A very small number of alpha particles were deflected backwards!

Answer 2

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Rutherford experiment

1. Atom is very small, spherical and electrically neutral particle containing maximum, empty part.

2. In an atom, the entire mass and positive charge is concentrated in a very small region at the centre,  known as nucleus.

3. The nucleus of atom is positive because all positive charge of atom i.e, all protons are situated in  nucleus.

4. Atom is electrically neutral. Hence number of proton present in atom in equal to the number of  electron present in atom.

5. The circular path in which electron move around the nucleus is called orbit

6. The positively charged nucleus imposes attraction force on electron but it does not fall into nucleus  because the centrifugal force produced by rotation of electron balance the attraction force of nucleus.

7. Size of nucleus is very small as compared to size of atom. Nucleus is about 10 th part of atom and  its radius is proportion to cubic root of nucleons (proton + neutron) present in atom