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What experiment did Ernest Rutherford use to prove the presence of protons in the atom?

A. Plum pudding model
B. Alpha Particle experiment
C. Gold Foil Experiment
D. Proton Extraction Experiment

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Final answer:

Rutherford's Gold Foil Experiment proved the presence of protons in the atom by observing the deflection of alpha particles.


Explanation:

Rutherford's Gold Foil Experiment:

Rutherford conducted the Gold Foil Experiment to test Thomson's plum pudding model of the atom. By bombarding a thin gold foil with alpha particles, he observed that while most particles passed through, some were deflected at large angles. This led to the proposal of the atom having a small, dense, positively charged nucleus at its center, providing evidence for the presence of protons in the atom.


Learn more about Rutherford's Gold Foil Experiment here:

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