Is on period 3 and group 15. It is a solid at room temperature. Atomic number is 15, mass number is 31. Melting point is 44.15 degrees Celsius and boiling point is 280.5 degrees Celsius. Classification is a non-metal. Electron Configuration is Ne 3s 3p. Number of neutrons is 16. Density is 1.82 g/cm. Element is natural. Structure is monoclinic. It's uses are for fertilizers and detergents.

Phosphorus