Final answer:
The empirical formula for the compound P4O6 is P2O3.
Step-by-step explanation:
The empirical formula for the compound P4O6 is P2O3. To determine the empirical formula, we need to find the simplest whole number ratio of the atoms present in the compound. In P4O6, there are 4 phosphorus atoms and 6 oxygen atoms. We can simplify this ratio by dividing both numbers by 2, resulting in P2O3. Therefore, the empirical formula for P4O6 is P2O3.