Phosphorus is an element, not a compound. It's represented by the symbol P on the periodic table. This means it's a pure substance and doesn't have components in the way a compound like water (H₂O) has components (hydrogen and oxygen).

However, you might be asking about the different forms of phosphorus:

* White phosphorus is a waxy, highly reactive solid. It's very dangerous and ignites spontaneously in air.

* Red phosphorus is a less reactive form of phosphorus. It's used in match heads and fireworks.

* Black phosphorus is a stable, non-reactive form of phosphorus. It's used in semiconductors.

These forms are all made up of the same element, phosphorus, but differ in their atomic arrangement and properties.