Answer the following:

List the three fundamental particles and their properties.

The properties of three fundamental particles are:

i. Electrons: Electrons are negatively charged particles. They have a negligible mass. These are much lighter than hydrogen atom. Electrons revolve in a circular orbit around the nucleus.

ii. Protons: Protons are positively charged particles. It remains inside the nucleus. Their mass is slightly less than that of neutrons.

iii. Neutrons: Neutrons has no charge and a mass nearly equal to that of proton. These are present in the nucleus of all atoms, except hydrogen. These are the heaviest fundamental particle.