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4. What do you think would be the observation if the \alpha-pa... - Science
Question
4. What do you think would be the observation if the \alpha-particle scattering experiment is carried out using a foil of a metal other than gold?
Answer
If a foil of a heavy metal (like platinum) is used, the observations will be similar to the gold foil experiment.
However, if a foil of a light metal (like lithium or aluminium) is used, the massive \alpha-particles will not suffer large deflections. They will push the lighter nucleus aside instead of bouncing back.