Rutherford's experiment measured scattering of positively charged alpha particles by a piece
of gold foil. The beam of emitted particles is in bold red. The deflected ones are shown in
lighter red. The blue shape is the detecting screen. Which of the following is a conclusion that
can be drawn from this experiment?
The gold nucleus attracts the alpha particles.
Atoms are made up primarily of alpha particles.
O Gold is a poor shield for radioactivity.
O The nucleus is a dense core and contains positively charged particles.
O Electrons have a negative charge.
Alpha
Particle
Emitter