Phosphorus (P) is a non-metal element of group 15 with atomic number 15 and atomic mass 30.974 u.
Identity
- Name: Phosphorus
- Symbol: P
- Atomic number: 15
- Atomic mass: 30.974 u
Position in the periodic table
- Group: 15
- Period: 3
- Category: Non-metal
Physico-chemical properties
- Standard state: Solid
- Melting point: 44.1°C (white P)
- Boiling point: 280.5°C
- Density: 1.82 g/cm³
- Electron configuration: [Ne] 3s² 3p³
Scientific description
Phosphorus is a reactive non-metal essential for biological chemistry and part of the pnictogen family.