Final answer:
The chemical formula of diphosphorus monoxide is P2O. It consists of two phosphorus atoms and one oxygen atom.
Step-by-step explanation:
The chemical formula of diphosphorus monoxide is P2O. The formula indicates that there are two phosphorus atoms (P) and one oxygen atom (O) in the compound. The subscript 2 after the phosphorus symbol indicates that there are two phosphorus atoms. Diphosphorus monoxide is a compound where two phosphorus atoms combine with one oxygen atom.