Question

unit 3 comprehensive quiz l
which conclusion could be made from ernest rutherfords gold foil experiment?
atoms are mainly solid and block alpha particles
atoms are made up of mostly empty space.
the mass of the nucleus is small compared to the rest of the atom

Explanation:

In Rutherford's gold - foil experiment, most alpha particles passed straight through the gold foil, indicating that atoms are made up of mostly empty space. Atoms are not mainly solid as most alpha particles did not get blocked. Also, the experiment showed that the mass of the nucleus is large compared to the rest of the atom.

Answer:

Atoms are made up of mostly empty space.