Nitrogen (N) — Element 7: Properties & Data
Nitrogen (N) is a nonmetal with atomic number 7 and atomic mass 14.007. It has melting point 63.15 K (-210 °C), boiling point 77.36 K (-196 °C), density 0.0012506 g/cm³. It sits in group 15 and period 2 of the periodic table and was discovered in 1772.
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Key facts
| Atomic mass | 14.007 u |
|---|---|
| Electron configuration | [He] 2s2 2p3 |
| Oxidation states | +5, +4, +3, +2, +1, -1, -2, -3 |
| Electronegativity (Pauling) | 3.04 |
| Atomic radius (van der Waals) | 155 pm |
| Ionization energy | 14.534 eV |
| Melting point | 63.15 K |
| Boiling point | 77.36 K |
| Density | 0.0012506 g/cm³ |
| Standard state | Gas |
| Discovered | 1772 |
Perguntas frequentes
What is the electron configuration of nitrogen?
The ground-state electron configuration of nitrogen is [He] 2s2 2p3.
What group and period is nitrogen in?
Nitrogen (N) is in group 15 and period 2 of the periodic table, classified as a nonmetal.
What is the melting point of nitrogen?
Nitrogen melts at 63.15 K (-210 °C).
What is the standard state of nitrogen?
Nitrogen is a gas at standard temperature and pressure.
Related elements
Sobre estes dados: property values compiled from IUPAC Standard Atomic Weights (2021), the NIST Atomic Spectra Database, and PubChem. Curated by the Aladdin Scientific technical team. Last reviewed: .