White phosphorus is more reactive than red phosphorus.
A difference between white and red phosphorus is their physical properties. White phosphorus is a yellow, waxy solid that is highly reactive and has a low ignition temperature. It is soft and can be cut with a knife. On the other hand, red phosphorus is a dark red or purple powder that is less reactive and relatively stable. It is not as flammable as white phosphorus and requires higher temperatures to ignite.
