Ernest Rutherford used about ________ thick gold foil for alpha scattering experiments.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 1000 atoms.
Ernest Rutherford used gold foil that was approximately 1000 atoms thick for his alpha scattering experiments. This thin foil, just a few micrometres in thickness, allowed alpha particles to pass through while some were deflected at large angles. The results of these experiments led to the discovery of the atomic nucleus and revolutionized our understanding of atomic structure. Rutherford's findings were fundamental in shaping the modern model of the atom.