Rutherford’s scattering experiment is related to the size of the
a)	Nucleus	b)	Atom	c)	Electron	d)	Neutron

(a)

According to Rutherford’s model of atom, an atom consists of a positively chargedheavy part called nucleus where most of the mass of the atom is concentrated. Protons and neutrons are present in the nucleus. Size of the nucleus is very small compared to the size of the atom

Around the nucleus, there is extranuclear part in which there are electrons

Electrons revolve around the nucleus in circular orbit like planets around the sun and they are called planetary electrons