Phosphorus igniting. Elemental phosphorus exists in two major forms -- white phosphorus and red phosphorus -- but due to its high reactivity, phosphorus is never found as a free element on Earth. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Winters, Charles D. |
Taille de l’image : | 4341 px × 3016 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |