When a gold sheet is bombarded by a beam of α–particles, only a few of them get deflected…

Chemistry · JEE Main · NTA Exams — Atomic Structure

1. The force of attraction exerted on the α–particles by the oppositely charged electrons is not sufficient.
2. A nucleus has a much smaller volume than that of an atom.
3. The force of repulsion acting on the fast moving
   α–particles is very small.
4. The neutrons in the nucleus do not have any effect on the α–particles.

Answer

(B) A nucleus has a much smaller volume than that of an atom.

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