
Nitrogen | Definition, Symbol, Uses, Properties, Atomic Number,
Oct 28, 2025 · Nitrogen, nonmetallic element of Group 15 [Va] of the periodic table. It is a colorless, odorless, tasteless gas that is the most plentiful element in Earth’s atmosphere and …
Nitrogen - Properties, Reactions, Compounds | Britannica
Oct 28, 2025 · An active form of nitrogen, presumably containing free nitrogen atoms, can be created by passage of nitrogen gas at low pressure through a high-tension electrical discharge.
nitrogen - Kids | Britannica Kids | Homework Help
The chemical element nitrogen is a gas that makes up much of the air in Earth’s atmosphere. It is also one of the principal chemical elements that are a part of all living things.
Nitrogen cycle | Definition & Steps | Britannica
Sep 27, 2025 · Nitrogen, a component of proteins and nucleic acids, is essential to life on Earth. Although 78 percent of the atmosphere is nitrogen gas, this gas is unusable by most …
Nitrogen - Essential, Compounds, Cycle | Britannica
Oct 28, 2025 · Nitrogen - Essential, Compounds, Cycle: As might be expected in view of the importance of the presence of nitrogen in living matter, most—if not all—organic nitrogen …
Nitrogen fixation | Definition, Process, Examples, Types, & Facts ...
5 days ago · Nitrogen is fixed, or combined, in nature as nitric oxide by lightning and ultraviolet rays, but more significant amounts of nitrogen are fixed as ammonia, nitrites, and nitrates by …
nitrogen summary | Britannica
nitrogen, Gaseous chemical element, chemical symbol N, atomic number 7. A colourless, odourless, tasteless gas, it makes up 78% of Earth’s atmosphere and is a constituent of all …
Nitrogen - Compounds, Reactions, Uses | Britannica
Oct 28, 2025 · Nitrogen - Compounds, Reactions, Uses: Although the other applications are important, by far the greatest bulk of elemental nitrogen is consumed in the manufacture of …
Nitrogen-fixing bacteria | Definition & Types | Britannica
Nitrogen is a component of proteins and nucleic acids and is essential to life on Earth. Although nitrogen is abundant in the atmosphere, most organisms cannot use it in that form.
Nitrogen Cycle, Microorganisms, Atmosphere - Britannica
Nov 14, 2025 · Unlike carbon, which is stored primarily in sedimentary rock, most nitrogen occurs in the atmosphere as an inorganic compound (N2). It is the predominant atmospheric gas, …