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Phoenix Blood Here you go...
A thin aluminum foil is placed some distance in front of a radioactive source emitting alpha particles, in vacuum. Using a counter, the number of alpha particles can be detected. Most pass right through the foil and straight ahead. Few are deflected to one side, and about 1 in 8000 are bounced back.
Now since alpha particles are +vely charged, they are repelled when confronted with a positive charge and will deflect in the presence of unlike charges. So this experiment proves that the protons are situated in a dense nucleus that is only a very tiny fraction of the whole atom, and that most of the atom is empty space. (That's why most alpha particles are unaffected.)
A thin aluminum foil is placed some distance in front of a radioactive source emitting alpha particles, in vacuum. Using a counter, the number of alpha particles can be detected. Most pass right through the foil and straight ahead. Few are deflected to one side, and about 1 in 8000 are bounced back.
Now since alpha particles are +vely charged, they are repelled when confronted with a positive charge and will deflect in the presence of unlike charges. So this experiment proves that the protons are situated in a dense nucleus that is only a very tiny fraction of the whole atom, and that most of the atom is empty space. (That's why most alpha particles are unaffected.)