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NEETChemistryStructure of Atom

How were the neutrons discovered?

Options

  1. ABy bombarding a thin sheet of beryllium with gamma rays
  2. BBy bombarding a thin sheet of beryllium with alpha particles
  3. CBy bombarding a thin sheet of aluminum with beta particles
  4. DBy bombarding a thin sheet of gold with protons

Correct answer

B. By bombarding a thin sheet of beryllium with alpha particles

Step-by-step solution

Neutrons were discovered by bombarding a thin sheet of beryllium with alpha particles.

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