The targets used in the alpha particle atomic experiments in the early 1900's were

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Chemistry

Ellis Cherry

30 July, 10:53

The targets used in the alpha particle atomic experiments in the early 1900's were

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Simone Pacheco · Answer 1

The answer is gold foil.

It was used by Ernest Rutherford, considered "the father" of nuclear physics. In an experiment in 1911, using gold foils, he demonstrated that the atom has a nucleus, where the positive charge of the atoms and most of their mass locate, overturning Thomson's atomic model as a consequence.