Homonym: N2 (Nitrogen)
N2, or nitrogen gas, is a colorless, odorless, and inert diatomic molecule composed of two nitrogen atoms. It makes up about 78% of the Earth's atmosphere and is essential for various biological processes. N2 is commonly used in industries for creating an inert atmosphere, preserving food, and in the production of fertilizers.
In the context of chemistry, N2 is significant because it is relatively unreactive under standard conditions. This stability makes it useful in applications where reactions need to be controlled, such as in the storage of sensitive materials. Additionally, nitrogen fixation processes convert N2 into forms usable by living organisms, like ammonia and nitrates.