Practise linking alpha-particle scattering observations to atomic structure, explaining common straight paths, small deflections and rare large-angle rebounds quantitatively.
This question is in two parts. Part 1 is about the nuclear model of the atom and radioactive decay. Part 2 is about waves.
Part 1 Nuclear model of the atom and radioactive decay
Outline how the evidence supplied by the Geiger-Marsden experiment supports the nuclear model of the atom.
most undeflected/pass straight through;
hence mostly empty space;
few deflected;
hence small dense nucleus;
positive / positively charged;