top of page


Ionization energy is one of several periodic trends including atomic radius, ionic radius, electronegativity, electron affinity and acidity/basicity.  To understand increases, jumps and dips in ionization energy, it's important to have a grasp on how strongly the nucleus pulls on shells as well as an understanding of the order of orbital filling and how this affects stability.  Please feel free to download and share this chemistry PDF if it helps you!  It's always good to connect your understanding to the periodic table, so you can download one here:

bottom of page