The polyatomic ions ClO2− and ClO3− are often compared with neutral SO3 when examining links among structure, resonance, and polarity.
(a) Construct one valid Lewis resonance structure for each species and state the total number of electron domains about the central atom.
(b) Using VSEPR considerations, identify the electron-pair geometry and the molecular geometry of each species.
(c) Predict whether each species is polar or non-polar. Provide a detailed justification that references both bond polarity and molecular symmetry, including the role of any lone pairs.
(d) A beam containing these three gaseous species passes through a region of non-uniform electric field. Qualitatively predict the relative degree of deflection experienced by each species (greatest, intermediate, least) and defend your prediction thoroughly.