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· It pumped a fine gold foil with alpha particles and a circular screen around it that collected them.
· I know that I could save money using something else, but the truth is that gold allowed me to make thin sheets.
· Most the particles penetrated the sheet without any deviation, a small part (1 in 20000) had large deviations and another small part bounced off.
And this is how Rutherford´s model was created!
So I managed to deduce that this happens only if the positive charge of an atom were concentrated only in small region, that’s how I know now atoms have a nucleus.
And outside the nucleus it was orbited by particles of opposite load and smaller size, as if it were a solar system.