(a(i))[2]
Most of the $\alpha$-particles pass through the gold sheet without deflection and are detected on the far side. State and explain what can be deduced from this observation.
(a(ii))[2]
A small number of $\alpha$-particles are deflected as they pass through the gold sheet. State and explain what can be deduced from this observation.
(a(iii))[2]
A very small number of $\alpha$-particles are deflected through very large angles or rebound back along their original path. State and explain what can be deduced from this observation.
(b)[2]
State two differences between the deflection of the $\alpha$-particles and that of the $\beta$-particles.