Elements / 7
7N14.007
Nitrogen
Reactive nonmetal · p-block · ring L · spoke 15
Nitrogen is element 7, a reactive nonmetal. It sits on ring L (period 2) on spoke 15, the pnictogens. Follow that spoke toward the center and out again to find its chemical relatives.
Properties
| Density | 1.25 g/L (as a gas) | Terrain → |
|---|---|---|
| Melting point | 63 K · -210 °C | Terrain → |
| Boiling point | 77 K · -196 °C | Terrain → |
| Electronegativity | 3.044th most electronegative of 100 | Terrain → |
| First ionization energy | 1,402 kJ/mol5th highest ionization energy of 103 | Terrain → |
| Atomic weight | 14.007 u | Terrain → |
| Crustal abundance | 19 ppm | Terrain → |
| Discovered | 1772 | Terrain → |
Values from open reference data; see sources. "Terrain" opens that property as a 3D landscape across the whole spiral.
Two things you might not know
- A Scottish physician found it in 1772 and called it noxious air; Lavoisier's name for it meant 'no life'.
- It makes up about 78% of Earth's atmosphere, and the Haber process pulls it from the air mostly to make fertiliser.
Checked against en.wikipedia.org.
Spoke 15: Pnictogens
Ring L (period 2)
Play with Nitrogen
Watch it fly into its seat, or raise the whole spiral into a landscape and see where it peaks.