Nitrogen is a chemical element. Its chemical symbol is N and its atomic number is 7. Nitrogen is the most element in the air, and it is very widespread in nature. It also has a great effect in the body and is one of the basic elements that make up amino acids.
Z (p)
N (n)
Quality (u)
Safety protection: Nitrogen is non-toxic when it is in the form of elemental substance (nitrogen), and it is often toxic when it is in the form of compounds, such as ammonia and nitrite.
No special protection is required when contacting nitrogen, and care must be taken to prevent frostbite when contacting liquid nitrogen.
