Concept #1: Understanding Electron Affinity
Electron affinity is the energy required to add 1 mole of electrons to a gaseous element.
Example #1: Rank the following elements in order of increasing electron affinity.
Cs, Hg, F, S
Se, S, Si
Practice: Shown below are the numerical values for electron affinities (EA's). Match the numerical values with each of the following elements provided in the boxes.