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) `XeF_(4)` is isoelectronic with `ICl_(4)^(-)` and has square planar geometry.

(ii) `XeF_(2)` is isoelectronic to `IBr_(2)^(-)` and has a linear structure.

(iii) `XeO_(3)` is isostructural to `BrO_(3)^(-)` and has a pyramidal molecular structure.