Physics · Alpha-particle scattering experiment, Rutherford's model of atom
When a gold sheet is bombarded by a beam of -particles, only a few of them get d
When a gold sheet is bombarded by a beam of \( \alpha \) -particles, only a few of them get deflected whereas most go straight, undeflected because: This question has multiple correct options
- A. the force of attraction exerted on the \( \alpha \) -particles by the oppositely charged electrons is not sufficient
- B. a nucleus has a much smaller volume than that of an atom
- C. the force of repulsion acting on the fast-moving \( \alpha \) particles is very small
- D. the neutrons in the nucleus do not have any effect on the \( \alpha \) -particles
Step-by-step solution
In Rutherford's gold foil experiment, most α-particles pass straight through because the atom is mostly empty space; the nucleus occupies a very small volume compared to the atom, so collisions with the nucleus are rare.
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