By 1911 Rutherford performed an experiment which is now known as Rutherford's scattering
experiment.
In that experiment, a thin sheet ( measures 0.00006 cm thickness) of gold was bombarded with alpha α particles.
√The α-particles were obtained from a radioactive substance.
√The particles were
doubly ionized helium atoms (He²*).
√The scattered α -particles which produced tiny flashes on striking with the zinc sulphide screen. These tiny flashes were observed with a movable microscope. The experiment set up used in the famous α-scattering experiment is shown in figure below.
Observations made
from the scattering experiment.
Structure of atom
experiment.
In that experiment, a thin sheet ( measures 0.00006 cm thickness) of gold was bombarded with alpha α particles.
√The α-particles were obtained from a radioactive substance.
√The particles were
doubly ionized helium atoms (He²*).
√The scattered α -particles which produced tiny flashes on striking with the zinc sulphide screen. These tiny flashes were observed with a movable microscope. The experiment set up used in the famous α-scattering experiment is shown in figure below.
Observations made
from the scattering experiment.
Structure of atom
Figure 4.
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