Plasma is often referred to as the fourth state of matter, alongside solid, liquid, and gas. When a gas is heated to very high temperatures or subjected to extreme energy, its atoms become ionized, resulting in a mixture of positively charged ions and free electrons. This ionized gas is what we call plasma. It's commonly found in stars, lightning, and some other high-energy environments. Due to its unique properties, plasma has a range of important applications in fields like medicine, electronics, and energy research.
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