Electronegativity and electron affinity are the same thing. It's just how much an element wants an electron. The noble gases don't want an electron, so they don't have electronegativity. They move like this down the chart.
Now, ionization energy is the amount of power it takes to remove the outside electrons. It moves the same way as electron affinity.
O.K. now keep with me here, we're onto Atomic radius and Ionic radius. They are the size from the middle of the nucleus to the outside of the atom. This all depends on the amount of electrons because it's all based on the pull of the atom. The trend arrow moves inversely to the others.