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