The smallest particle of an element that has the same properties as the element. It consists of a central core called the nucleus that is made up of protons and neutrons.
Electrons revolve in orbits in the region surrounding the nucleus.
A method for storing spent fuel. The splitting of atoms that results in the release of large amounts of energy. Two or three neutrons are usually released during this event. Carbon based fuel resulting from millions of years of biological decay. Coal, oil, and natural gas are the most common examples.