Plum Pudding Model, Alpha Scattering Experiment and The Nuclear Model

The Plum Pudding Model

• Suggested that an atom is a ball of positive charge with negative electrons embedded in it.

The Alpha Scattering Experiment

• Gold Foil - We can hammer gold out into foil so it is only a few atoms thick.
• Alpha Particles - Have a positive charge
• Deflection - Changed direction as it passed through the gold foil

Results

• Most of the Alpha particles went straight through the gold…