Question

In Rutherford's scattering experiment which of the following does not happen ?

• A. Most of the $\alpha$-rays pass through without deflection
• B. A few $\alpha$-particles pass through the nucleus
• C. A few $\alpha$-particles are deflected back
• D. $\alpha$-particles going near the nucleus are slightly deflected

Answer 1

Answer: (B)

A few $\alpha$-particles pass through the nucleus

In Rutherford's scattering experiment,

(1) Most of the rays pass through without deflection. This indicates that most part of the atom is empty space.

(2) A few particles are deflected back. This represents presence of nucleus which is centrally located, solid compact, small part having all positive charge and nearly the whole mass.

(3) Particles going near the nucleus are slightly deflected. However, none of the particles pass through the nucleus.

Hence, $B$ is a correct option.