There is no compound with the formula "P2N8" - it just could not possibly exist.
If the formula was intended to be PCl5, the compound is phosphorus pentachloride.
The Correct Chemical Name is: xenon tetrafluoride
dialuminium trisulphide?
The correct name for the compound FeCl3 is iron(III) chloride.
The correct name for the compound NH4S2 is ammonium sulfide.
The correct compound name for AlF3 is aluminum fluoride.
The correct compound name for BaO is barium oxide.
The correct name for the compound S3Cl2 is disulfur dichloride.
The correct name for the compound CS2 is carbon disulfide.
The correct name for the compound PCI is phosphorus trichloride.
The correct name of the compound N2O4 is dinitrogen tetroxide.
The correct name for the compound K2S is potassium sulfide.
The correct name for the compound NCl3 is nitrogen trichloride.
The correct name for HgO compound is mercury(II) oxide.
The correct name for the compound H2SO3 is sulfurous acid.
The correct name for the ionic compound Na2O is sodium oxide.
The correct name of the compound N2O4 is dinitrogen tetroxide.