Based on their Lewis structures, explain why CCl₄ and NCl₃ have different molecular shapes.

• A. CCl₄ has a tetrahedral shape since the central atom C has four bonded atoms (Cl), while NCl₃ has a trigonal pyramidal shape since the central atom N has three bonded atoms (Cl) and one lone electron pair.
• B. CCl₄ has a tetrahedral shape since the central atom C has four bonded atoms (Cl), while NCl₃ has a trigonal planar shape since the central atom N has three bonded atoms (Cl).
• C. CCl₄ has a trigonal pyramidal shape since the central atom C has three bonded atoms (Cl) and one lone electron pair, while NCl₃ has a tetrahedral shape since the central atom N has four bonded atoms (Cl).
• D. CCl₄ has a trigonal planar shape since the central atom C has three bonded atoms (Cl), while NCl₃ has a tetrahedral shape since the central atom N has four bonded atoms (Cl).

Answer: (A)