Question

what did the gold foil experiment help scientists understand about atomic structure? atoms are mostly empty space atoms are made of gold atoms are solid atoms have a dense nucleus

Explanation:

In Rutherford's gold - foil experiment, most alpha - particles passed straight through the gold foil, showing atoms are mostly empty space. Also, a small fraction of particles were deflected at large angles, indicating the presence of a dense, positively - charged nucleus.

Answer:

A. Atoms are mostly empty space; D. Atoms have a dense nucleus