The Lewis structure for Cl3PO is a diagram used in chemistry to graphically represent chemical bonding of phosphorous, chlorine and oxygen. In the diagram, phosphorous is in the center because it has the least tendency to draw electrons toward it.
Three chlorine atoms are shown around the phosphorous, and oxygen is displayed at the top. Dots in the diagram represent 32 valence electrons, which form the chemical bonds. From the diagram, the formal charge can be determined by subtracting the nonbonding electrons from the total electrons. Cl3PO is also known as a Cl anion, which is a molecule with a negative electrical charge due to a greater number of electrons than protons.