The temporary covalence of potassium fluoride (in X-ray and Auger spectra processes)
Abstract
The similarity in ionisation energy of K+(3p) and of the second 2p electron from Fâ enables molecular orbitals to be formed between doubly ionised fluoride and the surrounding potassium ions in potassium fluoride; this transitory covalency causes peak splitting in Auger spectra, and attenuation of high-energy satellite intensity in X-ray spectra.
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