Linear energy transfer, definition

Equation [33] is Mulliken s definition of electronegativity, so the linear coefficient in the Taylor series is the electronegativity of the atom. Mulliken s definition is consistent with other electronegativity scales. The second-order coefficient, j J, is the hardness of the atom, For semiconductors, the hardness is half the band gap, and r] is an important property in inorganic and acid-base chemistry. " Physically, IP - EA is the energy required to transfer an electron from one atom to another atom of the same type,... 

There is a specific energy of activation for ion transfer across the double layer for each metal considered. Its height is changed by applying an overpotential but a definite energy of activation can be associated with ion transfer, even though it is driven by a linear electrostatic field. 

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