Phosphorus
Symbol: P

Atomic Number: 15
Atomic Weight: 30.9738
Protons: 15
Neutrons: 16
Electrons: 15
Group: VA

Brief Description:
Phosphorus is a component of most living systems, and can be found anywhere from nervous tissue to bones. Ordinarily, it is a waxy solid, but is transparent when pure. Phosphorus is not soluable in water, but it can ignite spontaneously in air.