Which of the following fluorides of Xenon is | vedclass

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(C) Xenon is a noble gas with the valence shell electronic configuration $5s^2 5p^6$.In the excited state,electrons from the $5p$ orbital are promoted

Vedclass · Accepted Answer

$XeF_3$

Vedclass · Answer

(C) Xenon is a noble gas with the valence shell electronic configuration $5s^2 5p^6$.In the excited state,electrons from the $5p$ orbital are promoted to the empty $5d$ orbitals.Since each promotion of an electron creates two unpaired electrons,Xenon can only form compounds with an even number of fluorine atoms (e.g.,$XeF_2$,$XeF_4$,$XeF_6$).Therefore,$XeF_3$ is impossible because it requires an odd number of unpaired electrons.

Which of the following fluorides of Xenon is impossible?

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