Respuesta :

Rutherford  conducted the experiment that showed that atoms were mostly made up of empty space.

Rutherford done an experiment in which he allowed alpha particle to bombard on gold foil . Which shows  that the atom is mostly empty space with a tiny, dense, positively-charged nucleus. Based on these results, Rutherford proposed the nuclear model of the atom.

The observations made by Rutherford led him to conclude that: A major fraction of the α-particles bombarded towards the gold sheet passed through the sheet without any deflection, and hence most of the space in an atom is empty.

To learn more about Rutherford experiment here

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