When alpha particle are sent through a thin metal foil ,most of them go straight through the foil because

Options

A. `alpha-` particles are much heavier than electrons
B. `alpha-`particles are positively charged
C. Most part of the atom is empty space
D. `alpha-`particles move with high velocity

Answer

C

Explanation

If on moving in a straight line a charged particle shows that it is not influenced by any other particle in a wider range then we can conclude that most part in the atom is empty space. This also comes from Rutherford’s experiement that the atom has large empty space and that the nucleus occupies a very small part of the atom in terms of volume.