Give the formula and describe the structure of a noble gas species which is isostructural with:

(i) ICl–4


(ii) IBr–2


(iii) BrO–3


1) XeF4 is isoelectronic with ICl4-.


By isoelectronic, we mean that the two have the same number of valence electrons.


It has square planar geometry as shown below:



2) XeF2 is isoelectronic with IBr2-. And the geometry is linear structure.



3) XeF3 is isoelectronic with BrO3-. And the geometry is pyramidal structure.



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