Br3- Lewis Structure: How to Draw the Lewis Structure for the Br3-.

A step-by-step explanation of how to draw the Br3- Lewis Structure. In the Br3- Lewis structure Iodine (I) is the least electronegative and goes in the center of the dot structure. For the Br3- Lewis structure, calculate the total number of valence electrons for the Br3- molecule. After determining how many valence electrons there are in Br3-, place them around the central atom to complete the octets. Be sure to use the number of available valence electrons you found earlier. Get more chemistry help