Question

What is the hybridization of the central iodine atom in I3−?

Answer 1

In I , one iodine is taken as central atom and the other two are bonded with the central atom. The shape of the ion is linear. It is represented as follows There are 8 electrons in the central iodine atom Therefore, there are 2 bond pairs of electrons and 3lone pairs of electrons. The hybridization of the central iodine atom in I is sp'd. According to VSEPR theory, it is linear in shape. The shape is as follows