
Nitrogen - Wikipedia
Nitrogen is a chemical element; it has symbol N and atomic number 7. Nitrogen is a nonmetal and the lightest member of group 15 of the periodic table, often called the pnictogens. It is a common element in the universe, estimated at seventh in total abundance in …
Nitrogen | N2 | CID 947 - PubChem
Dinitrogen is an elemental molecule consisting of two trivalently-bonded nitrogen atoms. It has a role as a member of food packaging gas and a food propellant. It is a diatomic nitrogen, a gas molecular entity and an elemental molecule. It is a conjugate base of a diazynium.
Nitrogen | Definition, Symbol, Uses, Properties, Atomic Number, …
Jan 18, 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 is a constituent of all living matter. Its atomic number is 7 and it …
Nitrogen - Properties, Reactions, Compounds | Britannica
Jan 18, 2025 · Nitrogen - Properties, Reactions, Compounds: Nitrogen is a colourless, odourless gas, which condenses at −195.8 °C to a colourless, mobile liquid. The element exists as N2 molecules, represented as :N:::N:, for which the bond energy of 226 kilocalories per mole is exceeded only by that of carbon monoxide, 256 kilocalories per mole.
Nitrogen (N) – Definition, Preparation, Properties, Uses ... - Examples
Jan 21, 2025 · Represented by the symbol ‘N’ and atomic number 7, it is a nonmetal with five electrons in its outer shell. Nitrogen is crucial for all living organisms as it is a key component of amino acids, proteins, and nucleic acids (DNA & RNA).
Nitrogen - Simple English Wikipedia, the free encyclopedia
It has the chemical symbol N and atomic number 7. Its stable inside typically contains 14 nucleons (7 protons and 7 neutrons). It has 5 electrons in its outer shell. Nitrogen is a colorless odorless gas at normal temperature. It is normally attached to another nitrogen atom, making a nitrogen molecule (N 2). This bond is very strong.
What Is a Molecule? Definition and Examples - Science Notes …
Sep 12, 2020 · Here are examples of molecules and a look at the difference between a molecules, compounds, and ions. An atom is the smallest unit of an element. All atoms of a single element contain the same number of protons. Atoms cannot be further divided using any chemical method. In contrast, a molecule is the unit of a pure substance.
Chemistry of Nitrogen (Z=7) - Chemistry LibreTexts
Jun 30, 2023 · Molecular nitrogen (\(N_2\)) is not reactive at standard temperature and pressure and is a colorless and odorless gas. Figure \(\PageIndex{1}\) : A Bohr diagram of the nitrogen atom. Nitrogen is a non-metal element that occurs most abundantly in the atmosphere; nitrogen gas (N 2) comprises 78.1% of the volume of the Earth’s air. It only ...
Nitrogen | N (Element) - PubChem
Nitrogen is a chemical element with symbol N and atomic number 7. Classified as a nonmetal, Nitrogen is a gas at room temperature. J.C. Slater, J Chem Phys, 1964, 41 (10), 3199-3205. DOI:10.1063/1.1725697. B. Cordero, V. Gómez, A.E. Platero-Prats, M. Revés, J. Echeverría, E. Cremades, F. Barragán, S. Alvarez, Dalton Trans. 2008, 21, 2832-2838.
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 living matter. As the nearly unreactive diatomic molecule N 2, it is useful as an inert atmosphere or to dilute other gases.