Nitrogen is a gas that makes up most of our air. But what we are breathing has many other uses. Some are lifesaving, and some are very lethal.
Nitrogen can be very stable due to its valence needing 3 electrons or giving away five, which means it creates a very stable and expanded diatomic molecule, N^2. But in other cases, it can be very compact. This allows for nitrogen in airbags to make a triple bond with each other, and other gases are created like CO^2 and H^2O vapor. The same goes for bombs, only the cause and effect is magnified. They are safer to handle and therefore more stable, but have more impact when detonated. The atomic number is 7 and the mass is 14.007 amu