Electricity is the "flow" of energy. All matter is made up of atoms, and atoms are made up of smaller particles, electrons, protons and neutrons. The protons and neutrons make up the center of the atom, which is the nucleus. The electrons spin around the nucleus just like the moon orbits the earth.
Two of these particles have a charge. Electrons have a negative charge. Protons have a positive charge and neutrons are neutral, they do not have a positive or negative charge.
Some kinds of atoms have electrons loosely attached. They can easily be made to move from one atom to another. When those electrons move among the atom of matter, a current of electricity is created ( the flow of energy).( VanCleave,6)
Joseph John Thomson has been noted as the discoverer of the electron. " His experiments on stream particles emitted by cathode rays led to the discovery." He won the Nobel Prize in physics in 1906 for his work on the conduction of electricity.(Bird,2)
James Chadwick was awarded the Nobel Prize in physics in 1932. His discovery of the no charge particle in an atom called the neutron won him the prize. He also connected the atom number and the atomic charge. Chadwick is closely associated to the atomic bomb. ( Bird,4)