State the conclusions drawn by Rutherford from his α-ray scattering experiment.
i. Since most alpha particles pass through the gold foil without being deflected, Rutherford concluded that .
ii. A small percentage of alpha-particles were deflected at , suggesting that the atom's .
iii. A very few alpha-particles were deflected by °, indicating that the atom's were concentrated in a within the atom.
iv. Rutherford also concluded from the data that the radius of the nucleus is about .