By the promotion of one, two or three electrons from filled p-orbital to the vacant d-orbital in the valence shell, 2, 4 or 6 half filled orbitals are formed. Thus Xe can combine only with even number of fluorine and not odd.
Sunday, February 23, 2020
Why Noble gases exhibit large positive values of electron gainenthalpy?
Since noble gases have stable electronic configurations, they have no tendency to accept the electron and therefore, have large positive values of electron gain enthalpy.
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