When a gold sheet is bombarded by a beam of `alpha-`particle, only a few of them get deflected whereas most go straight, undeflected. This is because :

Options

A. the force of attraction on `alpha-`particles by the oppositely charged electron is not sufficient
B. the nucleus occupies much smaller volume as compared to the volume of atom
C. the force of repulsion on fast moving `alpha`-particles is very small
D. the neutrons in the nucleus do not have any effect on `alpha`-particles

Answer

B

Explanation

Most of the space in an atom in empty i.e., vacuum and the volume occupied by nucleus is much small `(10^(-15)m)` as compared to size to atom `(10^(-10)m)`.