how many electrons are in the valence shell of the central atom of icl3?
For ICl3, we have 7 valence electrons for Iodine; 7 for Chlorine, but we have three Chlorines; a total of 28 valence electrons. I is the least electronegative, put that in the center, and then Chlorines will go around it. Put two electrons between the atoms to form chemical bonds.