For 10 points, name this quantity that summarizes the ability of an atom to attract electrons and is approximately four for Flourine.
A technique named for Allen that uses spectroscopic data to measure this quantity runs into difficulties with d and f block electrons, while this quantity is used to plot species on Jensen's triangle. This quantity is proportional to the effective nuclear charge divided by a surface area term, in a result by (*) Allred and Rochow. One way to calculated this quantity is simply to average the ionization energy and electron affinity, but the most common definition of this quantity is based on dissociation energies; those scales are named for Mulliken and Pauling. For 10 points, name this quantity that summarizes the ability of an atom to attract electrons and is approximately four for Flourine.
A technique named for Allen that uses spectroscopic data to measure this quantity runs into difficulties with d and f block electrons, while this quantity is used to plot species on Jensen's triangle.
{Electronegativity}