Phosphorus: Properties
Compound Substances
| Oxidation State | Substances |
| P-III | PH3 , Ca3P2 |
| P-II | P2H4 |
| P0 | P4 |
| PI | H3PO2 (aq), H2PO2- (aq) |
| PII | P2I4 |
| PIII | P4O6 , H3PO3 (aq), PF3 , PCl3 , etc. |
| PV | P4O10 , H3PO4 (aq), H2PO4- (aq), etc., |
| PF5 , PCl5 , POCl3 , phosfates |