some of this particles were scatter some pass through without any deflection some were reflected back in the same direction
positive
Yes. It was shown by Rutherford's alpha scattering experiment.
The scattering experiment of E. Rutherford and his team lead to the disvovery of the proton and to a new atomic model. Alpha particles colliding an atom are scattered by the positive atomic nucleus containing protons.
Rutherford proved it it from his alpha-particle scattering experiment.
He completely changed the model of the atom using his simple alpha scattering experiment.
The alpha radiation in the experiment was detected by using a microscope and a fluorescent screen. When an alpha particle strikes the screen, the coating will fluoresce, and it will give off a "flash" of light. This small flash of light can be picked up by the investigator using the microscope.
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neutrons were discovered by james chadwick by an experiment which was started by madam curie. protons were discovered by rutherford in his alpha ray scattering experiment
positive
Because the alpha particles are positively charged. In order for the experiment to work, the positive alpha particles must be attracted to the negatively charged gold foil.
The alpha particle scattering experiment by Ernest Rutherford (1911) demonstrates that more than 99.9% of an atom contains empty space.
The experiment explains all angles as a measure of how close the alpha particles travelled to the nuclei. An acute angle means that the particle virtually hit the nucleus and was directly rebounded.