Question

i am about to tell you, but read it off the graph. as you go down the group (i have the noble gases boxed in blue), what is happening to the ionization energy. ie increases down the group ie decreases down the group.

Explanation:

As we move down a group in the periodic table, the atomic radius increases. This means that the outermost electrons are further from the nucleus. The force of attraction between the nucleus and the outermost electrons decreases. Ionization energy (IE) is the energy required to remove an electron from an atom. With a weaker attraction, less energy is needed to remove the electron. So, IE decreases down the group.

Answer:

IE decreases down the group.