Please help im not sure if its b or d?
We interrogate the rxn:
Now we know that ionization energy INCREASES across a Period from left to right as we face the Table because of the increase in nuclear charge.
Down a Group the ionization energy decreases, because the nuclear charge is effectively shielded by a complete inner shell.
So you can readily solve this so long as you are looking at a Periodic Table. You know that the inert gas neon will have the greatest ionization energy because it has a complete valence shell, and only
If you are worried about
The diagram clearly shows the trend I have argued.