Elements / 15
15P30.974
Phosphorus
Reactive nonmetal · p-block · ring M · spoke 15
Phosphorus is element 15, a reactive nonmetal. It sits on ring M (period 3) on spoke 15, the pnictogens. Follow that spoke toward the center and out again to find its chemical relatives.
Properties
| Density | 1.82 g/cm³ | Terrain → |
|---|---|---|
| Melting point | 317 K · 44 °C | Terrain → |
| Boiling point | Not measured | Terrain → |
| Electronegativity | 2.19 | Terrain → |
| First ionization energy | 1,012 kJ/mol | Terrain → |
| Atomic weight | 30.9738 u | Terrain → |
| Crustal abundance | 1,050 ppm | Terrain → |
| Discovered | 1669 | 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 Hamburg alchemist found it in 1669 while experimenting with urine: the first new element discovered since antiquity.
- Its name means 'light-bearer'; its white form glows faintly in the dark, and it is found in matches, fertilisers and DNA.
Checked against en.wikipedia.org.
Spoke 15: Pnictogens
Ring M (period 3)
Play with Phosphorus
Watch it fly into its seat, or raise the whole spiral into a landscape and see where it peaks.