2. Rutherford's experiment was important because it showed that:
(A)radioactive elements give off alpha particles.
(B)gold foil can be made to be only a few atoms thick.
(C) a zinc sulfide screen scintillates when struck by a charged particle.
(D) the mass of the atom is uniformly distributed throughout the atom.
(E) an atom is mostly empty space.

答案：登入後查看
統計： A(0), B(0), C(0), D(2), E(6) #2740063