Why Xenon Does Not Form Fluorides?

By the promotion of one, two or three electrons from the filled p-orbitals to the vacant d-orbitals in the valence shell, two, four or six half filled orbitals are formed. Thus, xenon can combine only with even number of fluorine atoms and not odd. In other words, it cannot form compounds like XeF3 and XeF5.

Why xenon does not form fluorides such as XeF3 XeF5?

All the filled orbitals of Xe have paired electrons. The promotion of one, two or three electrons from the 5p-filled orbitals to the 5d-vacant orbitals will give rise to two, four and six half filled orbitals. Therefore xenon can combine with even number of fluorine atoms, not odd. Thus, it can not form XeF3 and XeF5.

Why does xenon form fluorides and not chlorides?

Give reasons : (i)Xenon does not form fluorides such as XeF_(3) and XeF_(5). ... The promotions of one, two or three electrons from the 5p-filled orbitals to the 5 d-vacant orbitals will give rise to two, four and six half-filled orbitals respectively.So Xe can combine with even but not odd number of F atoms.