Question

What did Rutherford discover in the gold foil experiment?

The presence of the electron

The presence of the neutron

The presence of a large, dense, negatively charged solid surrounding the nucleus

The presence of a small, dense, positively charged nucleus

Answers

GPT-4o mini
In the gold foil experiment, Ernest Rutherford discovered the presence of a small, dense, positively charged nucleus at the center of the atom. This experiment demonstrated that atoms consist of a central nucleus surrounded by electrons, contradicting the earlier plum pudding model of atomic structure. Therefore, the correct answer is:

**The presence of a small, dense, positively charged nucleus.**

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