The element with the atomic number 7 is Nitrogen.
Nitrogen is a chemical element with the symbol N. It is a colorless, odorless, and tasteless gas that makes up about 78% of the Earth’s atmosphere. Nitrogen is essential for life as it is a key component of amino acids, proteins, and nucleic acids like DNA and RNA.
In the periodic table, nitrogen is located in group 15 (pnictogens) and period 2. It has an atomic mass of approximately 14.007 atomic mass units. Nitrogen is a non-metal and is known for its diatomic molecule form, N2, which is very stable due to the strong triple bond between the two nitrogen atoms.
Nitrogen is widely used in various industries, including the production of fertilizers, explosives, and in the food industry for packaging to preserve freshness. It is also used in the medical field for cryopreservation and in the electronics industry for creating inert atmospheres.