... slightly different from ideal.Chemistry, Julia Burdge, 2nd e., McGraw Hill. Chapter 10 Chemical Bonding II 2011, NKMB Co., Ltd.Chemistry, Julia Burdge, 2st Ed.McGraw Hill.Mr. Truong ... Tro, Chemistry: A Molecular Approach 147O2π∗ Antibonding MOHOMOπ Bonding MOHOMO-1σ∗ Antibonding MOLUMO+1π∗ Antibonding MOLUMO 10 Linear Geometry•when there are 2 electron groups ... = 7e─Total = 26e─4 Electron Groups on Cl3 Bonding Groups1 Lone PairShape = Trigonal PyramidalBond AnglesO-Cl-O < 109 .5°O-Cl-F < 109 .5°Cl Least ElectronegativeCl Is Central AtomO...