An inert gas is a gaseous chemical element that exhibits low chemical reactivity due to its complete outer electron shell.
Inert gases are part of Group 18 of the periodic table, known as noble gases, which include helium, neon, argon, krypton, xenon, and radon.
These gases rarely form chemical compounds due to their electronic stability, making them useful in applications where a non-reactive atmosphere is required, such as in neon lights or in industrial and laboratory environments.
