Final answer:
The chemical formula PCl3 stands for the compound phosphorus trichloride, consisting of one phosphorus atom and three chlorine atoms.
Step-by-step explanation:
The compound with the chemical formula PCl3 is named phosphorus trichloride. This is because the compound consists of one phosphorus atom and three chlorine atoms. In accordance with the nomenclature for molecular compounds, the prefix 'tri' indicates the presence of three chlorine atoms bonded to phosphorus. Phosphorus trichloride is a molecular compound and exhibits properties similar to other nonmetal halides.