#Plasma (from Greek πλάσμα, "anything formed") is one of the four fundamental #states_of_matter (the others being #solid, #liquid, and #gas). Heating a gas may ionize its molecules or atoms (reducing or increasing the number of electrons in them), thus turning it into a plasma, which contains #charged_particles: positive ions and negative electrons or ions. &neo 2013-08-20 02:00:50 |