Answer:
The Electron Configuration for Phosphorus is = 1s^2 2s^2 2p^6 3s^2 3p^3
Step-by-step explanation:
Here is a sheet of paper that might help you out. You follow the red lines and where it has 3p^6 is if it is a full set. If you count the number that all of those are raised to, then you should get 15 (which is the atomic number).
Sorry, if it is horizontal instead of vertical.