Allred and Rochow related
Allred and Rochow related effective nuclear charge and this quantity. This quantity equals the mean of the electron affinity and first ionization energy by Mulliken's definition. When molecules have atoms with differences in this quantity, they are deemed (*) polar. Fluorine has the highest value for this quantity on the Pauling scale. For 10 points, name this quantity which measures an atom's likeliness to attract electrons.
Allred and Rochow related effective nuclear charge and this quantity.
electronegativity