N2

N₂, or nitrogen gas, is a common, colorless, and inert (non-reactive) molecule that makes up about 78% of Earth's atmosphere. It consists of two nitrogen atoms bonded together. Because of its stability, N₂ is used in various applications like protecting sensitive materials in food packaging, filling inert atmospheres in laboratories, and manufacturing electronics. Although nitrogen is abundant and stable, it can also be a component of fertilizers and explosives. Its non-reactive nature makes it essential in situations where a safe, non-reactive environment is needed.