write the main reason for downfall of thomsons model of an atom ?
Asked by
| 27th Mar, 2009,
10:16: AM
Geiger and Marsden
carried out an experiment
in which
the alpha rays
were collided
against a thin metal foil.
Their results showed
that almost all incident alpha
particles penetrate
the foil and go straight
in forward direction
but a few are scattered
in very large angles.
The results of
the alpha particle scattering
cannot be explained
by Thomson's atomic model.
Thomson's raisin bread model
(plum pudding model)
therefore cannot
be valid
as an atomic model.
Answered by
| 27th Mar, 2009,
11:15: AM
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