Although the triiodide ion, I 3 , is known to exist in aqueous solutions, the ion is stable in only certain ionic solids For example, CsI 3 is stable with respect to decomposition to CsI and I 2 , but LiI 3 is not stable with respect to LiI and I 2 Draw a Lewis structure for theI 3 ion and suggest ...

The triiodide ion I can be represented by the Lewis structure as follows Each iodine atom has one lo ...

Although the triiodide ion, I 3 , is known to exist in aqueous solutions, the ion is

Question:

Although the triiodide ion, I₃‾, is known to exist in aqueous solutions, the ion is stable in only certain ionic solids. For example, CsI₃ is stable with respect to decomposition to CsI and I₂, but LiI₃ is not stable with respect to LiI and I₂. Draw a Lewis structure for the I₃‾ ion and suggest a reason why CsI₃ is stable with respect to decomposition to the iodide but LiI₃ is not.