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^(-)`

Explanation

(i) `ICI_4` is iso-structural with `XeF_4`. Both have square planar structure.
(ii) `Ibr_2` is isostructural and with `XeF_2`. Both have linear shape.
(iii) `BrO_3` is isostructural with `XeO_3`. Both have trigonal pyramidal structure.