Plasma

Plasma is one of the four fundamental states of matter. It consists of a gas of ions, witch are atoms that have some of their orbital electrons removed, and free electrons. Plasma can be artificially generated by heating a neutral gas or subjecting it to a strong electromagnetic field to the point where an ionized gaseous substance becomes increasingly electrically conductive. The resulting charged ions and electrons become influenced by long-range electromagnetic fields, making the plasma dynamics more sensitive to these fields than a neutral gas. Plasma and ionized gases have properties and behaviors unlike those of other states, and the transition between them is mostly a matter of nomenclature and subject to interpretation. Based on the temperature and density of the environment that contains a plasma, partly ionized or fully ionized forms of plasma may be produced.