Translations:Electricity and energy/7/en

Electricity is a force created from the basic building block of all matter - atoms. All atoms are composed of three core components - neutrons (no charge), protons (positive charge) and electrons (negative charge). Out of these three, the only one that is able to freely move from atom to atom is the negatively charged electron. Electrons can build up in higher concentrations in some locations and create a negative charge. Or there can be a lack of electrons, which create a positive charge. Electrons desire to flow from areas of high electron concentration to areas of low electron concentration. Not all atoms or materials have free electrons that can move around easily - most do not like wood, plastic rocks - we call these insulators. Metals and copper are good conductors as they have abundant free electrons.