Final answer:
The AXE notation for the chemical ICl4- is AX4E2. The molecule has a square planar geometry, with the central iodine atom bonded to four chlorine atoms and having two lone pairs of electrons. The arrangement of atoms and electrons results in specific bond angles and overall molecular structure.
Step-by-step explanation:
The AXE notation for the chemical ICl4- is AX4E2. In this notation, 'A' represents the central atom, 'X' represents the bonded atoms, and 'E' represents the lone pairs of electrons. The Lewis electron structure for ICl4- would show the central iodine atom bonded to four chlorine atoms, each having three electron pairs. The iodine atom would also have two lone pairs of electrons. The molecule carries a single negative charge, indicating an excess of one electron.
The arrangement of the atoms and lone pairs of electrons in ICl4- results in a square planar geometry, similar to an octahedron with two opposite vertices missing. The bonding electron pairs are in the equatorial plane, while the lone pairs are in the axial positions. The Cl-I-Cl bond angles are not expected to deviate due to the symmetry of the molecule and the repulsions between the bonding and lone pairs of electrons.