1. What type of particles make up the red beam of light ejected at the gold foil in the Rutherford experiment? A. alpha particles
B. beta particles
C. gamma radiation
D. None of these is correct.

2. What are the spots of bright light that appear sporadically around the blue detecting screen? A. radiation emitted from the blue detecting screen
B. scattered gold atoms
C. scattered alpha particles
D. metal electrons discharging energy

3. Rutherford scattering determined that A. atoms are diffuse with neutrons and protons distributed randomly in space.
B. atoms are mostly empty space.
C. electrons have almost no mass.
D. covalent bonds involve a sharing of electrons.

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