Memory Game Lewis StructuresOnline version Formal Charges, Resonance structures by Marissa Corr 7- (.5)(2) - 6 =0 # valence electrons - 1/2(# bonding e's) - (# non-bonding e's) Bent 18 Formula for formal charge The most stable resonance charge has a formal charge that is: How many single bonds and how many lone pairs does HCl contain? The molecular geometry of CF4 is Tetrahedral zero on all elements, or has the negative charge on the most electronegative atom. The molecular geometry of SO2 is What is the mathematical process of finding the formal charge of Cl in HCl? 3, 1 1, 2, 8 1, 3