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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 the Milky Way and the Solar System. At standard temperature and pressure, two atoms of the…
History, Applications & Standards
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oxygen gas compounds acid ammonia used carbon nitric liquid water oxide known also many produced dinitrogen form complexes first air
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Nitrogen | 13N | trace | 1.00 | infobox |
| Nitrogen | 14N | 99.6% | 1.00 | infobox |
| Nitrogen | 15N | 0.380% | 1.00 | infobox |
| Nitrogen | 16N | synth | 1.00 | infobox |
| Nitrogen | Allotropes | see § Allotropes | 1.00 | infobox |
| Nitrogen | Appearance | colorless gas, liquid or solid | 1.00 | infobox |
| Nitrogen | at T (K) | 37 | 1.00 | infobox |
| Nitrogen | Atomic number (Z) | 7 | 1.00 | infobox |
| Nitrogen | Block | p-block | 1.00 | infobox |
| Nitrogen | Boiling point | (N2) 77.355 K (−195.795 °C, −320.431 °F) | 1.00 | infobox |
| Nitrogen | CAS Number | 17778-88-0 7727-37-9 (N2) | 1.00 | infobox |
| Nitrogen | Covalent radius | 71±1 pm | 1.00 | infobox |
| Nitrogen | Critical point | 126.21 K, 3.39 MPa | 1.00 | infobox |
| Nitrogen | Crystal structure | hexagonal (hP4) | 1.00 | infobox |
| Nitrogen | Density (at STP) | 1.2506 g/L at 0 °C, 1013 mbar | 1.00 | infobox |
| Nitrogen | Discovery | Daniel Rutherford (1772) | 1.00 | infobox |
| Nitrogen | Electron configuration | [He] 2s2 2p3 | 1.00 | infobox |
| Nitrogen | Electronegativity | Pauling scale: 3.04 | 1.00 | infobox |
| Nitrogen | Electrons per shell | 2, 5 | 1.00 | infobox |
| Nitrogen | Group | group 15 (pnictogens) | 1.00 | infobox |
| Nitrogen | Heat of fusion | (N2) 0.72 kJ/mol | 1.00 | infobox |
| Nitrogen | Heat of vaporisation | (N2) 5.57 kJ/mol | 1.00 | infobox |
| Nitrogen | Ionisation energies | 1st: 1402.3 kJ/mol | 1.00 | infobox |
| Nitrogen | Ionisation energies | 2nd: 2856 kJ/mol | 1.00 | infobox |
| Nitrogen | Ionisation energies | 3rd: 4578.1 kJ/mol | 1.00 | infobox |
| Nitrogen | Ionisation energies | (more) | 1.00 | infobox |
| Nitrogen | Lattice constants | a = 411.6 pm c = 673.4 pm (at t.p.) | 1.00 | infobox |
| Nitrogen | Magnetic ordering | diamagnetic | 1.00 | infobox |
| Nitrogen | Main isotopes | .mw-parser-output .isotopes-table{text-align:center;width:100%;border-collapse:collapse;margin:0;padding:0}.mw-parser-output .isotopes-table-headers>:not(:first-child){padding:0… | 1.00 | infobox |
| Nitrogen | Melting point | (N2) 63.23 K (−209.92 °C, −345.86 °F) | 1.00 | infobox |
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