P
Phosphorus
Element 15 · Nonmetal · Period 3, Group 15
Solid · Discovered 1669
Atomic Properties
| Atomic Number | 15 |
| Atomic Mass | 30.973762u |
| Electron Configuration | [Ne]3s2 3p3 |
| Electronegativity | 2.19Pauling |
| Atomic Radius | 180pm |
| Ionization Energy | 10.487eV |
| Electron Affinity | 0.746eV |
| Oxidation States | +5, +3, -3 |
Physical Properties
| Standard State | Solid |
| Melting Point | 317.3K |
| Boiling Point | 553.65K |
| Density | 1.82g/cm³ |
| Group Block | Nonmetal |
| Year Discovered | 1669 |