Saturday, April 26, 2014

RUTHERFORD'S ATOMIC MODEL PART-1
This is called planetary model or nuclear model of atom.
Rutherford's atomic model is based on the findings of α-ray scattering experiment.
An atom is a hollow sphere and the entire mass and positive charge are concentrated at the centre
                   of the atom in the smallest region called nucleus.
Electrons revolve around the nucleus in circular path.

This model failed to explain the stability of atoms and line spectra of atoms.
As per the laws of electrodynamics an electron moving around the nucleus must radiate energy
                   continuously and must spiral down into the nucleus.
If an electron radiates energy continuously the atomic spectrum should be a continuous spectrum.
The atom should collapse if it happens.
But all the atoms give line spectra.

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