Question

give three observation three Conclusion and limitation of Rutherford Model of an atom

Answer 1

$<h3>OBSERVATIONS$

$<h4>1 ). Most of the alpha particles passed through the gold foil undeflected.$

$<h4>2 ). A small fraction of alpha particles got deflected through small angles.$

$<h4> 3 ). Very few did not pass through the foil at all but suffered large deflections or even come back suffering a deflection of 180°.$

$<h3>CONCLUSIONS$

$<h4>1 ). In an atom, the entire mass and the positive charge is concentrated in a very small region at the centre known as NUCLEUS.$

$<h4>2 ). The positive charge of the nucleus is due to the protons.$

$<h4>The mass of the nucleus is due to the protons and some other neutral particles each having mass nearly to the mass equal to proton. This neutral particle was Neutron.$

$<h3>DRAWBACKS$

$<h4> 1 ). Rutherford model cannot explain the stability of the atom and line spectra if the motion of the electron is described on the basis of classical mechanics and electromagnetic the theory.$

$<h4> 2 ). Rutherford model also failed to explain the existence of certain definite lines in the Hydrogen Spectrum.$

$<h4> 3 ). This model does not explain the structure of atoms, i. e, the distribution of electrons around the nucleus and their energies.$

Answer 2

Explanation:

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