Predict the molecular structure (including bond angles) for each of the following. (See Exercises 111 and \(112 .\) ) a. \(\mathrm{ICl}_{5}\) b. \(\mathrm{XeCl}_{4}\) c. \(\mathrm{SeCl}_{6}\)

For each molecule, we'll first identify the central atom and count the number of bond electron pairs and lone electron pairs on it. a. \(\mathrm{ICl}_{5}\): Central atom: Iodine (I) Bond electron pairs: 5 (one bond with each of the 5 chlorine atoms) Lone electron pairs: 1 (as 7 - 5 = 2; corresponds to one lone electron pair) b. \(\mathrm{XeCl}_{4}\): Central atom: Xenon (Xe) Bond electron pairs: 4 (one bond with each of the 4 chlorine atoms) Lone electron pairs: 2 (as 8 - 4 = 4; corresponds to two lone electron pairs) c. \(\mathrm{SeCl}_{6}\): Central atom: Selenium (Se) Bond electron pairs: 6 (one bond with each of the 6 chlorine atoms) Lone electron pairs: 0 (as 6 - 6 = 0; corresponds to zero lone electron pairs)

Now, we will use the VSEPR notation AXE, where A represents the central atom, X represents the bond electron pairs, and E represents the lone electron pairs. Then, we'll determine the molecular structure based on it. a. \(\mathrm{ICl}_{5}\): VSEPR notation: AX5E1 Molecular structure: Square pyramidal Bond angles: Approximately 90 degrees between equatorial atoms and axial atoms; approximately 120 degrees between two equatorial atoms. b. \(\mathrm{XeCl}_{4}\): VSEPR notation: AX4E2 Molecular structure: Square planar Bond angles: Approximately 90 degrees between any two adjacent chlorine atoms. c. \(\mathrm{SeCl}_{6}\): VSEPR notation: AX6E0 Molecular structure: Octahedral Bond angles: 90 degrees between any two adjacent chlorine atoms; 180 degrees between any two opposite chlorine atoms. In conclusion, the molecular structures and bond angles for the given molecules are as follows: a. \(\mathrm{ICl}_{5}\): Square pyramidal, bond angles around 90 degrees and 120 degrees b. \(\mathrm{XeCl}_{4}\): Square planar, bond angles around 90 degrees c. \(\mathrm{SeCl}_{6}\): Octahedral, bond angles around 90 degrees and 180 degrees