State the proton’s quark composition.
State the neutron’s quark composition.
State the quark composition of an alpha particle.
In the alpha-particle scattering experiment, alpha-particles were aimed at a thin gold foil. State what may be inferred from the observation that most alpha-particles pass through the foil.
In the alpha-particle scattering experiment, alpha-particles were aimed at a thin gold foil. State what may be inferred from the observation that some alpha-particles are scattered through angles greater than $90^{\circ}$.
A proton and an alpha-particle are travelling through the same uniform electric field. Determine the ratio $\frac{\text{acceleration of proton due to the electric field}}{\text{acceleration of alpha-particle due to the electric field}}$.