Problem: Consider the following molecule:SCl6Are the bonds polar or non-polar?polarnon-polarIs the molecule polar or non-polar?polarnon-polar

SCl₆

Step 1: Sulfur (EN = 2.5) is less electronegative than chlorine (EN = 3) so sulfur is the central atom. 

Step 2: The total number of valence electrons present in SCl₆ is:

            Group             Valence Electrons

S         6A                   1 × 6 e^– = 6 e^–

Cl        7A                   6 × 7 e^– = 42 e^–

Total:  48 valence e^–

Step 3: Sulfur follows an expanded octet to form 6 bonds while halogens, when not the central atom, form only 1 bond. The Lewis structure is: