Symbol | P | Atomic radius: pm | 110 | Fusion: kJ/Mole | 0.66 |
Name | Phosphorus | Ionic radius: pm | (+5)17 | Boiling point: °C | 280 |
Atomic number | 15 | Electron affinity | 0.75 | Melting point: °C | 44 |
Atomic weight | 30.97 | 1st ion potential | 10.36 | Specific Heat Cap: J/(g K) | 0.77 |
Classification | Non-metal | Natural form | Solid | Thermal Cond: W/(cm K) | 0.002 |
Configuration | [Ne]3s2p3 | Crystal structure | Cubic | Electrical Cond | 1x10-17 |
Oxidation states | +/-3,5,4 | Density | 1.82 | Abundance: mg/kg-crust | 1,050 |
Electronegativity | 2.19 | Vaporization: kJ/Mole | 12.40 | ||
Phosphorus was first prepared in elemental form in 1669 by a German alchemist, Hennig Brand, from a residue of evaporated urine. | Uses - fertilizer, detergents, matches, fireworks, pesticides |