Final answer:
The most reasonable estimate for the atomic radius of chlorine (Cl) based on the given information is 126 pm.
Step-by-step explanation:
To estimate the atomic radius of chlorine (Cl), we can use the covalent atomic radius method. Based on the given information about the atomic radii of F (64 pm), Br (114 pm), and I (133 pm), we can infer that the atomic radius of chlorine (Cl) would be between the atomic radii of Br and I. The options provided are A) 53 pm, B) 89 pm, C) 126 pm, D) 162 pm, and E) 196 pm. Among these options, the most reasonable estimate for the atomic radius of chlorine (Cl) would be option C) 126 pm.