science
Grade-9
Easy

Question

The particle which was deflected backward were hit by:

  1. Nucleus
  2. Electrons
  3. Protons
  4. Neutrons.

The correct answer is: Nucleus


    A small fraction of the α-particle deflected from the original path. This indicated that the positive charge is at the center of the atom (nucleus) and due to repulsive forces, deflections take place.
    Hence, nucleus is the right answer.

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