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Unformatted text preview: bind to soft bases. Theory and Hard and Soft Acid and Bases Theory and Hard and Soft Acid and Bases I, ionization potential (energy): minimum energy required to remove an electron from a gas phase atom. Ea, electron affinity: the change of energy when a gaseous atom gain one electron. χ (chi), electron negativity (EN): The power of an atom to attract electrons to itself when it is a part of a compound Polarization of atoms Theory and Hard and Soft Acid and Bases Quantitative measures: Absolute hardness = half the difference between the ionization energy and the electron affinity. Soft ness is defined as the inverse of hardness. Theory and Hard and Soft Acid and Bases...
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