A plasma is an extremely hot gas that is composed of free-floating ions (atomic nuclei stripped of some electrons - making the ions positively charged) and free electrons (negatively charged). A plasma behaves much differently than a neutral gas, and is considered the fourth state of matter. A plasma conducts electrical currents. Stars are composed of plasma.
d. PLASMA - Has NO DEFINITE VOLUME OR SHAPE AND IS COMPOSED OF ELECTRICAL CHARGED PARTICLES.