Question

explain Rutherford's experiment with a-particle scattering​

Answer 1

Explanation:

Observations of Rutherford’s Alpha Scattering Experiment

The observations made by Rutherford led him to conclude that:

1. A major fraction of the α-particles bombarded towards the gold sheet passed through it without any deflection, and hence most of the space in an atom is empty.
2. Some of the α-particles were deflected by the gold sheet by very small angles, and hence the positive charge in an atom is not uniformly distributed. The positive charge in an atom is concentrated in a very small volume.
3. Very few of the α-particles were deflected back, that is only a few α-particles had nearly 180o angle of deflection. So the volume occupied by the positively charged particles in an atom is very small as compared to the total volume of an atom.

Answer 2

Answer:

Alpha particle scattering experiment / Gold foil experiment / Rutherford's scattering experiment

Observations

a)Most of the alpha particles passed through the gold foil without any deviation

b) A smal number of the alpha particles was deflected by small angles

c) A vey few alpha particles bounced back

Conclusion

a) Most of the space in an atom is empty

b) The positive charge of an atom is concentrates in a very small volume at the centre calle nucleus

c) The volume occupied by the nucleus is neglibly small as compared to the total volume of the atom

Posulates of Rutherford atom mode / Nuclear model of atom / planetry model of atom

a) All the positive charge and mass of the atom were concentrated in the centre called nucleus.

b) Eectrons are revolving around the centre of the actom in a circular path called orbit.

c) Electrons and the nucleus are held together by electrostatic forces of attraction.

Drawbacks of Rutherford's atom model

a) It could not explain the stability of the atom

b) It could not explain the electronic structure of atom